1 . 【基础巩固】
(1)如图1,在
中,
为
上一点,连结
,
为
上一点,连结
,若
,
,求证:
.
【尝试应用】
(2)如图2,在平行四边形
中,对角线
交于点
为
上一点,连结
,
,
,若
,求
的长.
【拓展提升】
(3)如图3,在菱形
中,对角线
交于点
为
中点,
为
上一点,连结
、
,
,若
,
,求菱形
的边长.
(1)如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5143d076f4916c31cf8ef04bf2949f2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eaffcd2070bfcb1955e2cab66c26c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b78f3b9b7e9df101bcca7c6a55479e.png)
【尝试应用】
(2)如图2,在平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d578394cd8e4d7a705599269c512960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e7f10e0c8af2d0d02a685f6f19e329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3665bd5241be8c0784b3bfd5561b2d95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0267d755ce31abd4ff46f5cb0f8a9838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dfeb3476cf87104f534f6e1dbbb0e12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
【拓展提升】
(3)如图3,在菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d578394cd8e4d7a705599269c512960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e7f10e0c8af2d0d02a685f6f19e329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9499f61722d00231cc5c4056543ca6e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd30288c53418e35f1cc2932627e957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2024-05-20更新
|
330次组卷
|
2卷引用:2024年四川省成都市金牛区中考二模数学试题
2 . 【问题背景】
,求证:
;
【尝试应用】
(2)如图2,在
和
中,
,
,
与
相交于点F,点D在
边上,
,
,求
的值;
【拓展创新】
(3)如图3,D是
内一点,
,
,
,
,请求出
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67061e6fa526d1e082bed7b01c819982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa98026a648010decfaf672dc9141c9.png)
【尝试应用】
(2)如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26813466e2ee49a493881a4384fc8748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ed3163605f3c832ff52779a12f507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773d72c98bb8e17f5120b694ca838f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f341b98caabf99bc683ce8407068735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ec395fe7a4bc51dac28c37085fabcf.png)
【拓展创新】
(3)如图3,D是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36395a1f890888bae8c6b1cfb95e8d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a20cb14fea4a7cad4b7775a3dd67df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077c956ac0eb05cf120e14f17413dfa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
您最近一年使用:0次
名校
3 . 【基础巩固】
(1)如图1,在
中,D为
上一点,连结
,E为
上一点,连结
,若
,求证:
.
【尝试应用】
(2)如图2,在平行四边形
中,对角线
交于点O,E为
上一点,连结
,若
,求
的长.
【拓展提升】
(3)如图3,在菱形
中,对角线
交于点O,E为
中点,F为
上一点,连结
,若
,
,求菱形
的边长.
(1)如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aadef7d71079f7953ea6eb3f9c44968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd7edc508c8fc8de42058bd2364d77a.png)
【尝试应用】
(2)如图2,在平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d0b0b7d07ac1aebab6b6f1e8c6acdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5168d2641ae584f6b922074320762f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ba99f3d174abf75fa5c9707f107145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
【拓展提升】
(3)如图3,在菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d0b0b7d07ac1aebab6b6f1e8c6acdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1992f6d926022aa72f86d367da4bc8f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e511588db7f353f450c7a3a60135d699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2023-10-15更新
|
314次组卷
|
7卷引用:四川省内江市威远县威远中学校2023-2024学年九年级上学期期中数学试题
4 . 数学思想方法是解决问题的重要途径.在探究性学习中,我们可以采用从特殊到一般的数学思想,先从最简单的情形入手,从中找到解决问题的一般规律.如图,在
中,D为
边上一动点,在线段
右侧作线段
,使得
,且
.
![](https://img.xkw.com/dksih/QBM/2024/3/12/3451983019630592/3453269066014720/STEM/39cf284bb16146b792f529e2ed6ecc59.png?resizew=550)
【特殊情况】(1)若
,点E在
外,连接
交
于点F.
①如图1,
,
,猜想线段
与线段
有怎样的数量关系,说明理由;
②如图2,若
,猜想线段
与线段
有怎样的数量关系,说明理由;
【拓展运用】(2)如图3,若点E在
内,
与
交于点F,
,请用含k的式子表示
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c3d17c2b84511e18912c20634a1d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd1de2149bee37af329b7ad5b15de9d.png)
![](https://img.xkw.com/dksih/QBM/2024/3/12/3451983019630592/3453269066014720/STEM/39cf284bb16146b792f529e2ed6ecc59.png?resizew=550)
【特殊情况】(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
①如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
②如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9e54d5a5e5924a87cce099dfe50c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
【拓展运用】(2)如图3,若点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eceb0629d2166e32028a721138df9b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b69eceac97ee6859e4fa51d54d40391.png)
您最近一年使用:0次
5 . 【基础巩固】(
)如图
,在
与
中,
,连接
,求证:
;
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/3d3eac13-4d20-4358-b758-09cdb23650ca.jpg?resizew=521)
【尝试应用】(
)如图
,在
与
中,
,连接
三点在一条直线上,
与
交于点
;
求
的大小;
若
且
,求
的面积:
【拓展提高】(
)如图
,在
与
中,
,点
为
的中点,
交
于点
,连接
,若
,且
为
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e6983bc19bb4a79a041bdaed346506e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba83afe4ade6624b283331a18bdf2ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c5a0011c9af0c81b06e0b9b6dee3c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/3d3eac13-4d20-4358-b758-09cdb23650ca.jpg?resizew=521)
【尝试应用】(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a9f44a7445d31919a72dcb260367932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfdd36b62a92cba12c3cbd9b5980b756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9940b7a52cfb34f91389c8adac6b69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8fae49af64a1f2eebbfa4bc2bc7893e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60634341a9603e24b2bbc6960abe3d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
【拓展提高】(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a9f44a7445d31919a72dcb260367932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf193ff4546dfb09008d6354f374b280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/370abdf35cb8817d35b78eea892731ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b837fd9c52f60bfb3b6852733abc790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
您最近一年使用:0次
6 . 通过类比联想、引申拓展研究典型题目,可达到解一题知一类的目的
下面是一个案例,请补充完整.
原题:如图
,点
,
分别在正方形
的边
,
上,
,连接
,则
,试说明理由.
(1)思路梳理
,
把
绕点A逆时针旋转
至
,可使
与
重合.
,
点
,
,
共线
根据______
从“
,
,
,
”中选择填写
,易证
______ ,得
.
(2)类比引申
如图
,四边形
中,
,
,点
,
分别在边
,
上,
若
,
都不是直角,则当
与
满足等量关系______ 时,仍有
.
(3)联想拓展
如图
,在
中,
,
,点
,
均在边
上,且
猜想
,
,
应满足的等量关系,并写出推理过程.
(4)思维深化
如图
,在
中,
,
,点
,
均在直线
上,点
在点
的左边,且
,当
,
时,直接写出
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/25/3cf3180e-9ed5-4621-a151-6a566ffec1cf.png?resizew=604)
原题:如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192155e6a3aade305b76b1eb7c75e30c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9af98a1a048b1e2f7c71e83c33498c.png)
(1)思路梳理
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e9dd6147fd83173b71cc7467e481b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbd6f0a0412d0f43ce1f7c1d530e56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767beba2f7653fdac24f4757114d0237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6720e36b02193db161c61d4017673760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2ba04decd9d9204ec64d567af55721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9970629e91021aa64fb871c83746418c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec76570a0ddc83c103a4b77589d80701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0b7b7edc7306d6c5b3eedf6b8ae985d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9af98a1a048b1e2f7c71e83c33498c.png)
(2)类比引申
如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c767ca438fae00de0403aa23293bfa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9af98a1a048b1e2f7c71e83c33498c.png)
(3)联想拓展
如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778adadc0f40a416683b6e9560cb8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
(4)思维深化
如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf14bc3bfe884ddfff067ba7f410b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb08f6a798dc293f3d8de281190f65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
解题方法
7 . 问题提出:如图①,在
中,
,
,
,
的半径为
,
为圆上一动点,连接
,求
的最小值.
,在
上取一点
,使
,则
.又
,所以
.所以
.所以
,所以
.请你完成余下的思考,并直接写出答案:
的最小值为 ;
(2)自主探索:在“问题提出”的条件不变的前提下,求
的最小值;
(3)拓展延伸:如图②,已知在扇形COD中,
,
,
,
,
是
上一点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1777acc5d9f9195b2d1b474a504766f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd10d8dfb2bfa794ff2ffc04eddb168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caeb81b74a4a2c4726a62cb210c4cb3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acf9e2f45e625cbc6d26dd5e292edd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50bed8d6701c91027d598d92046962cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0c2dba4d672b8db7fb5d519fb3a3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5802f04dddef78f89c2bf168a3b0f92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9ae6d7d640f8f32582b110b0a79078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718f8cfcfc7ee3fcfa945fca7935be13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/452e4f96bd4cdef5378f7fc0a5005bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0f4fc603c296d75a42e6b05f49654d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b246ff0ef487f4be80bfe1bde8c486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50bed8d6701c91027d598d92046962cc.png)
(2)自主探索:在“问题提出”的条件不变的前提下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9ec23585dc988bd26e09094a2a8a6b.png)
(3)拓展延伸:如图②,已知在扇形COD中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0261e86642de5bb7ea3272015cb65485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5dc61399533e70c8241b06dfdfea671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81c03e2cd262d94f569cbe99ea5b1a0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6be15831bd9aa1bb1ebb33a13d05b9f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf1ac75a3242350e3dd383dea7e2dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231aac43aaf883e570a3caac142f6d27.png)
您最近一年使用:0次
2024-01-07更新
|
590次组卷
|
11卷引用:四川省隆昌市蓝天育才学校2021-2022学年九年级下学期第一次月考数学试题(一模)
四川省隆昌市蓝天育才学校2021-2022学年九年级下学期第一次月考数学试题(一模)江苏省宿迁市沭阳县沭阳红岩学校2020-2021学年九年级上学期期末数学试题(已下线)专题06 最值问题2之胡不归 阿氏圆江苏省无锡市锡山区查桥中学2022-2023学年九年级上学期10月月考数学试题(已下线)期末押题培优01卷(考试范围:1.1-6.7)-【微专题】2022-2023学年九年级数学下册常考点微专题提分精练(苏科版)(已下线)专题21 圆的有关位置关系(真题3个考点模拟8个考点)-学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(安徽专用)2023年安徽省蚌埠市蚌山区中考模拟数学试题江苏省无锡市锡山区查桥中学2023-2024学年九年级上学期10月月考数学试题2024年云南省昆明市中考数学模拟预测题(已下线)易错模型03 最值模型(八大易错分析+变式训练+易错题通关)-备战2024年中考数学考试易错题(全国通用)(已下线)数学-2024年中考考前最后一课(12)
8 . 【阅读】如图1,若
,且点B,D,C在同一直线上,则我们把
与
称为旋转相似三角形.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/79f86922-5e7a-4ce6-a019-a16dec78eee9.png?resizew=667)
【理解】(1)如图2,
和
是等边三角形,点D在边
上,连接
.求证:
与
是旋转相似三角形.
【应用】(2)如图3,
与
是旋转相似三角形,
,求证:
.
【拓展】(3)如图4,
是四边形
的对角线,
,试在边
上确定一点E,使得四边形
是矩形,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9619bb7107b1e96b3708c338d21fb5b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/79f86922-5e7a-4ce6-a019-a16dec78eee9.png?resizew=667)
【理解】(1)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
【应用】(2)如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71c67dae7c83183ffbf215c58ed1def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546f5e3bf6a3b60f85ea730a6cd7b36e.png)
【拓展】(3)如图4,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc730c393ca3add066780cb9918d93e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bfad3f7e65188bcf7f62ea5acdbf4a.png)
您最近一年使用:0次
真题
名校
9 . 【特例感知】
(1)如图1,在正方形
中,点P在边
的延长线上,连接
,过点D作
,交
的延长线于点M.求证:
.
【变式求异】
(2)如图2,在
中,
,点D在边
上,过点D作
,交
于点Q,点P在边
的延长线上,连接
,过点Q作
,交射线
于点M.已知
,
,
,求
的值.
【拓展应用】
(3)如图3,在
中,
,点P在边
的延长线上,点Q在边
上(不与点A,C重合),连接
,以Q为顶点作
,
的边
交射线
于点M.若
,
(m,n是常数),求
的值(用含m,n的代数式表示).
(1)如图1,在正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d4db5b8e1be98e467b6f0540ab3466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdf4714dcc9ed2baa76a538f5d1ae17.png)
【变式求异】
(2)如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f78bc6606b08ba600102d95e6418325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329c893cdaede883a62f613c46d86928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb8e20db1fbb40f17dea52f951b907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50196d293a863fe2f9e46199052ab8c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9d2ecb2dd842f8dc4fae3c42e26ee1.png)
【拓展应用】
(3)如图3,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3aa00e202fc89fb05d58d371f2b78b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b4eea854f71c03b451cd3005119f38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8305c4ffbf876642440c3d28e91e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac82ae472f33ceb1c9139a05506d61d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae35e5215a1461968065017569e48254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9d2ecb2dd842f8dc4fae3c42e26ee1.png)
您最近一年使用:0次
2023-10-19更新
|
2144次组卷
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12卷引用:四川省成都市武侯区成都市第七中学2023-2024学年九年级上学期12月月考数学试题
四川省成都市武侯区成都市第七中学2023-2024学年九年级上学期12月月考数学试题2024年四川省达州市开江县九年级中考模拟测试(二)数学试题2023年浙江省湖州市中考数学真题 (已下线)寒假作业14 相似三角形的基本模型-【寒假分层作业】2024年九年级数学寒假培优练(人教版)安徽省安庆市第二中学(南区)2023-2024学年九年级上学期月考(二)数学试题(已下线)第1讲 相似三角形(已下线)专题7 化归思想浙江省湖州市吴兴区第四中学教育集团2023-2024学年九年级上学期期末数学试题2024年山东省庆云县中考第一次练兵考试数学模拟试题(已下线)专题16 相似三角形(考点回归+练透中考6类核心重点考向)-备战2024年中考数学真题题源解密(全国通用)(已下线)重难点02 相似三角形模型及其综合题综合训练(11大题型+满分技巧+限时分层检测)-2024年中考数学【热点·重点·难点】专练(全国通用)(已下线)专题10 三角形压轴题综合-2024年中考数学二轮热点题型归纳与变式演练(全国通用)
22-23九年级上·浙江宁波·期末
10 . 【基础巩固】
(1)如图1,在四边形
中,对角线
平分
,
.求证:
;
【尝试应用】
(2)如图2,四边形
为平行四边形,
在
边上,
.点
在
延长线上,连结
,
,
,若
,
,
,求
的长;
【拓展提高】
(3)如图3,在
,
是
上一点,连结
,点
,
分别在
、
上,连结
,CE,
,若
,
,
,
,
,求
的值.
(1)如图1,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/645b06bbe036df96e4138c7732e45824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64fb7d5e455a868ffa6ba46b6b19d1b.png)
【尝试应用】
(2)如图2,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c7e48723871f06a6aeae31a2a1ff79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ff8c8d239cc12ddc3a899e9f054aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4eccda4edcee29a5f15609e85106df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8120f2eeb724c756b5f84a14c6df527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f85e0f22b5bcb05d038d9bd172be097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cbfaec1d9dcaaf159b060163436113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e82a0052299f414cff1e7afcc5aa19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
【拓展提高】
(3)如图3,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3620030e8808da46df97330103827913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2d0ac8b8bfe2f6f40c2cd4dacbe909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662a9a633cdf3c5f19105025d69fc089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7c422a19b68b8b4cd484d22897e3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019080abcdd6bcf77ac8ecf57d77d84d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca07b4b1d1d30ebf0a5a402ad8aeecf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/22/120dbbc8-fc67-4425-8779-8e9f840f3e37.png?resizew=433)
您最近一年使用:0次
2023-08-13更新
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179次组卷
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6卷引用:四川省成都市青羊区泡桐树中学2022-2023学年九年级上学期期中数学试题