1 . 如图,将长方形
放置在平面直角坐标系中,点P是折线A-B-C上的动点(点P不与A、C重合),连接
,将
绕点P顺时针旋转
,点O落到点Q处.已知点B坐标为
,当
时,则点Q坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfb6fda9e830ca86d6570fde5c405ef0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f3ea44bfc0dfeda12b479a96a0be74.png)
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4卷引用:第3章 图形的平移与旋转(单元测试·培优卷)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)
(已下线)第3章 图形的平移与旋转(单元测试·培优卷)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)(已下线)专题3.6 图形的旋转(分层练习)(基础练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)(已下线)专题3.14 图形的平移与旋转(全章分层练习)(基础练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)江苏省常州市武进区前黄实验学校2023-2024学年八年级上学期期中数学试题
23-24八年级上·北京西城·期中
名校
2 . 如图,已知
是等边三角形,点E在射线
上且
,在射线
上取点D使得
,连接
并延长交射线
于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/25d31da2-86b2-4a3a-b6ab-970a4c61d537.png?resizew=226)
(1)当
时,
①
______;(请用含
的代数式表示)
②求证:
;
(2)当
时,请根据题意补全图形,并写出线段
,
,
间的数量关系______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea800510a5c39b1de1ac8bab7eae3259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e12457d5b7d0f2611f4cdc173ceb784.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/25d31da2-86b2-4a3a-b6ab-970a4c61d537.png?resizew=226)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c983377084d7e46a8f798f1a01c908b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b63f7bb04b2ddc7c88d0363a812a22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c105ed5902492dbdce4bd987efb9814a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da0dec75990cc0c4c1ee9ebf5931826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/946a08d5-3c48-46af-9b59-640990242393.png?resizew=198)
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2023-11-11更新
|
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6卷引用:北京市第四中学2023-2024学年八年级上学期期中数学试题
(已下线)北京市第四中学2023-2024学年八年级上学期期中数学试题(已下线)专题7.4 期末复习之解答压轴题十三大题型总结-2023-2024学年八年级数学上册举一反三系列(苏科版)(已下线)专题16.4 期末复习之解答压轴题十三大题型总结-2023-2024学年八年级数学上册举一反三系列(人教版)(已下线)专题6.4+02期末复习之解答压轴题十八大题型总结-2023-2024学年八年级数学上册举一反三系列(浙教版)(已下线)专题16.4 期末复习之解答压轴题十三大题型总结-2023-2024学年八年级数学上册举一反三系列(沪科版)(已下线)专题16.4 期末复习之解答压轴题十三大题型总结-2023-2024学年八年级数学上册举一反三系列(华东师大版)
3 . 如图,在
中,
于点
,交
于点
,
,四边形
和
都是正方形(正方形的四边相等,四个内角都是直角),下列四个说法:
(1)
;
(2)若连接
,则
且
;
(3)
的面积为18,且被直线
平分;
(4)若连接
,则四边形
的面积为90.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/095e6d83-c6fe-4f7d-b6af-6bbe4d1b10e9.png?resizew=178)
其中正确的说法个数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e1885a5257dfaa0663bbb7dafb08f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3432d20e661779ddcefda76afcc2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a34fdf9e6d2d87d01ad0bbb6a73ee05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9d54cbbf601f4583659771eb534997.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb88e6617fc49e752c86cd6ece0aae18.png)
(2)若连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7341a27fa7f07d638a1e17cd61bfc21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7130948ecf92acee002d2e88a71d5d5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d89ff9e8f94e5f3956ac0c9509e1888.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00870385ca7f3214e2971779eb4c7904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(4)若连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf2fa3cb87267ee5f968c2a9362d216.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/095e6d83-c6fe-4f7d-b6af-6bbe4d1b10e9.png?resizew=178)
其中正确的说法个数有( )
A.1 | B.2 | C.3 | D.4 |
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4 . 已知
,
,
,连接
,N为
的中点.
(1)如图,若A、M、D共线,求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92744e4fc896d42bcaf26e808ad190f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7115b9ba0494ead745fc91f6b145e8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a386524e1e2a7bc2754052f780cd275a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
(1)如图,若A、M、D共线,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2548a54046989bf6241e73f5f0091af9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/5/4ee7d058-e083-4564-8419-4f6aebb05639.jpg?resizew=152)
您最近一年使用:0次
5 . 如图,为了测量湖宽
,先在
的延长线上选定点
,再选一个适当的点
,然后分别延长
、
到点
、
,使
、
,又在
的延长线上找一点
,使
、
、
三点在同一直线上,这时,只要测出线段
的长度就可知湖宽,你能说明其中的道理吗?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37305862d8305ab911767326ba461d9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b12836d8af47e444bf21cfd34b8021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a7bdf7e08e931ba7df81d0e88c43596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
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|
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4卷引用:甘肃省西和县某校2023-2024学年八年级上学期第一次月考数学试题
甘肃省西和县某校2023-2024学年八年级上学期第一次月考数学试题河南省南阳市新野县2023-2024学年八年级上学期期中数学试题(已下线)专题4.25 三角形(全章分层练习)(基础练)-2023-2024学年七年级数学下册基础知识专项突破讲与练(北师大版)青海省海东市互助县第三片区五校联考2023-2024学年八年级上学期数学试题
名校
6 . 如图1,已知四边形
是矩形,点E是
上一点,连接
交
于点G,延长
交
延长线于点F.
,
,求证:
;
(2)如图2.在(1)的条件下,连接
,求证:
;
(3)如图3,四边形
关于直线
的对称图形为四边形
,延长
交
于P,若
,
,四边形
的面积为 .(直接写出答案,无需证明)
![](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/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30e50e094cd2849e38859b36aad0b0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45b04cc3e5adaeff6f9e01e29032803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14833dbeed409b33acd4c9071fd0be36.png)
(2)如图2.在(1)的条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60357fcce73421b244bf16aaf03df196.png)
(3)如图3,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5d685ad543faa971dd5a157952df66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c57b07f75e97d9f84718bd495ebcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9feec56a64476d04a42b737d4493f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e078cd122af12cd6079b8bba40275235.png)
您最近一年使用:0次
名校
7 . 已知直线a:
与x轴交于点P、与y轴交于点Q
(2)直线b:
与y轴交于点M,与直线a交于点B,判断
的面积是否为定值,若是定值,求
的面积;若不是,说明理由.
(3)如图,过点Q在第二象限内作线段
,且
,连接
,取
的中点D.当k满足
时,求点D运动的路径长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c3c8e07995ab3277b6588c0f4ae92c.png)
(2)直线b:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767d9d1f88983d8c06692222e2455ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ffbc15ed301a4e7735e501683c3213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ffbc15ed301a4e7735e501683c3213.png)
(3)如图,过点Q在第二象限内作线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e60696bc24ddf5026b17e20922f7dac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b55c031325f79a2091378a93ba9eeab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f444ff28ff64bec1b1c6f9527c3dca.png)
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2023-10-22更新
|
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4卷引用:湖北省武汉市培英中学2023-2024学年九年级上学期月考数学试题
湖北省武汉市培英中学2023-2024学年九年级上学期月考数学试题(已下线)专题5.25 二元一次方程与一次函数(分层练习)(基础练)-2023-2024学年八年级数学上册基础知识专项突破讲与练(北师大版)福建省福州延安中学2023-2024学年八年级下学期期中数学试题(已下线)湖北省襄阳华侨城实验学校2023-2024学年九年级8班上学期数学周练15
真题
名校
8 . 【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)
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2023-10-19更新
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2123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(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)(已下线)第1讲 相似三角形(已下线)专题7 化归思想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)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 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
9 . 在平面直角坐标系中,点
,点
,点
,其中
且点
不与点
重合.
(1)如图1,过点
作
于
,在
延长线上取点
,使得
,求证
;
(2)如图2,将
绕点
顺时针旋转
得到
,连接
交
轴于点
求
的值.(用含
的式子表示,并直接写出
的取值范围)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4fd4da08956db1f206c8ea026f4e52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557437a8641a61bf64c1e40f2bbf72a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e5af1862eeadd3179ae3dbac7671d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/17/56f779d5-6225-486d-bf08-d097d93bc97e.png?resizew=425)
(1)如图1,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8621541881fc9a3c79bf300bc6a2f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3b4b9e9464826c841011fd56181440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd260fb9d772c122dcb1df52cbe38ab.png)
(2)如图2,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfdcf0f283004878c27a1afc4f657dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71bb0944a7fd72c026500ac8e8d4d1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a049bbb4d47d9bc64356ca038142b3d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-10-16更新
|
127次组卷
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3卷引用:辽宁省大连市甘井子区2023-2024学年九年级上学期10月月考数学试题
辽宁省大连市甘井子区2023-2024学年九年级上学期10月月考数学试题辽宁省大连市第七十六中学2023-2024学年九年级上学期10月月考数学试题(已下线)第3章 图形的平移与旋转(单元测试·拔尖卷)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)
真题
10 . 【问题背景】
人教版八年级下册数学教材第63页“实验与探究”问题1如下:如图,正方形
的对角线相交于点
,点
又是正方形
的一个顶点,而且这两个正方形的边长相等,无论正方形
绕点
怎样转动,两个正方形重叠部分的面积,总等于一个正方形面积的
.想一想,这是为什么?(此问题不需要作答)
九年级数学兴趣小组对上面的问题又进行了拓展探究、内容如下:正方形
的对角线相交于点
,点
落在线段
上,
(
为常数).
(1)如图1,将
的直角顶点
与点
重合,两直角边分别与边
,
相交于点
,
.
①填空:
______;
②求证:
.(提示:借鉴解决【问题背景】的思路和方法,可直接证明
;也可过点
分别作
,
的垂线构造全等三角形证明.请选择其中一种方法解答问题②.)
【类比探究】
(2)如图2,将图1中的
沿
方向平移,判断
与
的数量关系(用含
的式子表示),并说明理由.
【拓展运用】
(3)如图3,点
在边
上,
,延长
交边
于点
,若
,求
的值.
人教版八年级下册数学教材第63页“实验与探究”问题1如下:如图,正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e2699bbd62cf03b5f1eaae984287d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e2699bbd62cf03b5f1eaae984287d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
九年级数学兴趣小组对上面的问题又进行了拓展探究、内容如下:正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d52f125abf9625888d5feb7d6d2b5fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)如图1,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d244880e9a28a02df25b4e864b28975e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
①填空:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acd79bb9fb06f7c806eb6e17e4b613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3304c41b7ef6d6f43ec3090c5362f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
【类比探究】
(2)如图2,将图1中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b51d3992644d37dc71c9b5a97d515c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
【拓展运用】
(3)如图3,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f27564bb46555b27e130fe9aad7615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ffc7d1af9053b027cf9e726f5367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3d9105c0a55832a1ba674ec12364b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
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|
1684次组卷
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9卷引用:专题5 回顾教材
(已下线)专题5 回顾教材(已下线)突破05 平移、旋转、折叠等操作探究问题(4类重点考向)-备战2024年中考数学真题题源解密(全国通用)(已下线)数学-2024年中考考前最后一课(9)2023年湖北省襄阳市中考数学真题(已下线)湖北省襄阳华侨城实验学校2023-2024学年九年级上学期8班数学周测(14)试卷(已下线)清单15 相似三角形的性质与判定(3个考点梳理+17种题型解读+提升训练)-2023-2024学年九年级数学上学期期末考点大串讲(苏科版)湖北省襄阳五中华侨城实验学校2023-2024学年九年级下学期数学周测(1)江苏省盐城市滨海县 2023-2024学年九年级下学期3月月考数学试题2024年江西省九江市第十一中学中考一模数学试题