1 . 在矩形
中,
(k为常数),点P是对角线
上一动点(不与B,D重合),,将射线
绕点P逆时针旋转90°与射线
交于点E,连接
.
时,将点P移动到对角线交点处,则
______,
______;当点P移动到其它位置时,
的大小______(填“改变”或“不变”);
(2)类比探究:如图2,若
时,当k的值确定时,请探究
的大小是否会随着点
的移动而发生变化,并说明理由;
(3)拓展应用:当
时,如图2,连接
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e49bc8e05c0a12b8b3365dab140e0aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e61620a272dada8d4b9a9fab6379dfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971b23e3ee827018557d6c88edd5369a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96ebcc5d1c5c9ad3539232a419eb04cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e3eb6c275c686f000cf9bd4933415b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9b4a78c3b85dafdaec2e4e6dc87bd7.png)
(2)类比探究:如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c525393775354325cbf7839366ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9b4a78c3b85dafdaec2e4e6dc87bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)拓展应用:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c525393775354325cbf7839366ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48c36e4c618227f649db122a5e52075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
您最近一年使用:0次
2024-04-08更新
|
487次组卷
|
6卷引用:2021年湖北省老河口市中考适应性考试数学试题
2021年湖北省老河口市中考适应性考试数学试题2023年湖北省襄阳市宜城市中考一模数学试题2024年湖北省阳新县城区四校中考一模数学试题2024年湖北省黄石市阳新县陶港镇初级中学中考一模数学试题湖北省黄石市 阳新县陶港镇初级中学2023-2024学年九年级下学期月考数学试题(已下线)考前特训03 几何解答题探究综合压轴题-2024年中考数学二轮热点题型归纳与变式演练(全国通用)
2 . (1)【问题探究】如图1,点F是正方形
边
上一点,射线
交对角线
于点E,交
的延长线于点G.证明
;
(2)【知识迁移】如图2,点F是平行四边形
边
上一点,射线
交对角线
于点E,交
的延长线于点G.证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72530d80dd4ba3681d913c78e8838d9.png)
(3)【拓展应用】如图3,
是
的中线,点E是
上一点,过点C作
,连接
并延长交
于点F,交
于点G,若
,求
的值.
![](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/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72530d80dd4ba3681d913c78e8838d9.png)
(2)【知识迁移】如图2,点F是平行四边形
![](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/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72530d80dd4ba3681d913c78e8838d9.png)
(3)【拓展应用】如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](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/e660b5bc650c65167910eb61de342576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61017970f6720fb8a5fdbff0e9423fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d35314a30e779d4a940b9dab4d4f4b4a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/de742643-740d-47a0-9cea-fdfda13b2a66.png?resizew=523)
您最近一年使用:0次
3 . 综合与实践
如图,
是
的切线,
为切点,
是圆上与
不重合的两点.
(1)如图1,若
是
直径,
,则
________.
问题探究
(2)如图2,当
为
上任意一点时,
与
有怎样的关系?并加以证明.
拓展运用
(3)如图3,
的半径是2,
,求
的大小.
如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0520e9675bc1b416e8b8f01eb69fd13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed09914814b6abbfb04769ca7ca24567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc79fee8f7996b58dbed724fe6afcddb.png)
问题探究
(2)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32986401a4d24904d5e446fa9210ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
拓展运用
(3)如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b968d9de81b3730d6b2bb9dba8ed0de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
您最近一年使用:0次
2024-04-03更新
|
66次组卷
|
2卷引用:贵州省遵义市新蒲新区2023年初中生毕业认定测试九年级数学模拟预测题
4 . 小明在学习了矩形与旋转的知识后,对矩形的一条边进行旋转探究,下面是他的探究过程,请你对下列问题进行解答:
如图,在矩形
中,
,
,边
绕点A顺时针旋转
得到
,作
平分
交
于点P,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/5183b2a1-4414-484e-93e1-9ca68d204205.png?resizew=615)
(1)初步探究
①如图1,若
垂直平分
,分别交
,
于点G,H,当
落在
上时,
______,
的长度为______.
②如图2,当
落在对角线
上时,点
到
的距离为______.
(2)深入探究
如图3,若
,请用含x的代数式表示
的值.
(3)拓展探究
若
与矩形
的对角线垂直,请直接写出
的长.
如图,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd248fc03c7b6aa7234dacd3d505e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70893226b221dd85f16612b7c89b678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c10cd9fe2cec68681f6246f23420f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/5183b2a1-4414-484e-93e1-9ca68d204205.png?resizew=615)
(1)初步探究
①如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0061f59f364f21fc690e983c226b7214.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e506042aa6fe11250f9d5e88cab26d8b.png)
②如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)深入探究
如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a666403569e607f32af5f762c246dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778d63c688e3b0c54a427154138cbff2.png)
(3)拓展探究
若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
您最近一年使用:0次
5 . 下面是李老师在“矩形折叠中的相似三角形”主题下设计的问题,请你解答.
如图,已知在矩形中,
,点E为边
上一点(不与点A、点B重合),先将矩形
沿
折叠,使点B落在点F处,
交
于点H.
(1)观察发现
写出图1中一个与相似的三角形: .
(2)迁移探究
当与
的交点H恰好是
的中点时,如图2.
①设,请判断
的数量关系,并说明理由;
②求阴影部分的面积.
(3)拓展应用
当点B的对应点F落在矩形的对称轴上时,直接写出
的长.
您最近一年使用:0次
2023-11-02更新
|
165次组卷
|
2卷引用:2024年山西省晋中市昔阳县中考一模数学试题
6 . 综合与实践
问题情境:
在数学活动课上,老师给出了这样一个问题:如图①,在正方形纸片中,点E是边
的中点,将
沿
所在的直线折叠,得到
,延长
交
于点P,连接
猜想证明:
(1)求证:;
拓展探究:
如图②,延长交
于点F.
(2)求证:;
(3)求的值.
您最近一年使用:0次
7 . 基本模型(1)如图1,矩形
中,
,
,
交
于点E,则
的值是______.
类比探究(2)如图2,
中,
,
,
,D为
边上一点,连接
,
,交
于点E,若
,求
的长.
拓展应用(3)如图3,在矩形
中,
,点F,G分别在
上,以
为折痕,将四边形
翻折,使顶点A落在
上的点E处,且
,连接
,设
的面积为
,
的面积为
,
的面积为
,若
,请直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/625000a942ec1b76a1176284be6d6520.png)
类比探究(2)如图2,
![](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/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eceda38269b406b34b9f0cce02d5697f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
拓展应用(3)如图3,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a306417e43670260e4b68a928a22071f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d93949d8a15aca4e79cedb978590571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ddcd5435b39971f897210aa0b66a259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6370d6c626bdabf1fc694501ee6c714f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67da1bf51e5f87750a63dc9e856ee87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b4cc0f867c4ff7a68595cdfc4ba1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f050ac5bbf3d7b01d3433ab83b2a2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/485fd8aa254b523bef30560500ccaf41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a26acbf5508b9e5599e2c05803d55f.png)
您最近一年使用:0次
2024-03-22更新
|
316次组卷
|
3卷引用:2024年湖北省武汉市中考一模数学试题
名校
8 . 如图(1),已知点G在正方形
的对角线
上,
,垂足为点E,
,垂足为点F.易证四边形
是正方形.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/22/df33fb5d-9893-4b16-a831-5b7d2d00ff4f.png?resizew=395)
(1)推断,
的值为 ;
(2)探究与证明:将正方形
绕点C顺时针方向旋转α角
,如图(2)所示,试探究线段
与
之间的数量关系,并说明理由:
(3)拓展与运用:正方形
在旋转过程中,当B,E,F三点在一条直线上时,如图(3)所示,延长
交
于点H.若
,
.则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0ddc47cce2e80eefc150192061c3b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7fe55d17f5ca49389dd2cb1ab74ac2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920ae90193d50ae60beafae6f2b4ebcd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/22/df33fb5d-9893-4b16-a831-5b7d2d00ff4f.png?resizew=395)
(1)推断,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ec2c1bca9d89d16df525a45408aa76.png)
(2)探究与证明:将正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920ae90193d50ae60beafae6f2b4ebcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d235f9fc4293435ed0e81660ea86f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)拓展与运用:正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920ae90193d50ae60beafae6f2b4ebcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7978151ee28b5d0b797786526d303d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea88e1806b38ad1e335bdfc4612809c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
您最近一年使用:0次
9 . 几何综合:
已知:点
是
边
上一动点,作
∽
,点
、点
分别是边
、
的中点,连接
、
;设
(常数
).
(1)证明推断:
若
.如图①,当
时,
①求证:
≌
;
②推断:当
时,
_____;
(2)类比探究:
若
.如图②,当
时,试写出线段
、
、
与常数
之间一个相等关系,并证明;
(3)拓展应用:
若
.如图③,设
,
,当
,
时,求常数
的值和线段
的长度.
已知:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3322a2ad9a95bdc9fc576a7a158d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b43490ca09467a4c8cd8cfe91c94e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3322a2ad9a95bdc9fc576a7a158d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d8e33929752b1cb4dd36ee9b98b45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e6228ef979d12858839a11477a0eac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/29/e43e829a-eb97-4c29-9a67-f6b0d523a684.png?resizew=460)
(1)证明推断:
若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a888af84a973afcc566759428cf8ba38.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50244defdb202cc420e1d6a910241c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e671075faf64db9b6bafa0696d9846c1.png)
②推断:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4d54b7ff95f2bb56fc6f7979fae83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6502d8757b1d53b825af7b315bdb194.png)
(2)类比探究:
若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c525393775354325cbf7839366ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4d54b7ff95f2bb56fc6f7979fae83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac57c755370b6cbf96fcd3314dabb99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd3a43e2c4528f40e546ceeb7bd3945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3978fefb5b9f3178d63043e1148aeb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)拓展应用:
若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c525393775354325cbf7839366ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26813466e2ee49a493881a4384fc8748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4d54b7ff95f2bb56fc6f7979fae83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/841bcbdb968142a2d418d2f6de1e3ba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d08d15a1fc1bce496b40ecb7eab0e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
您最近一年使用:0次
10 . 综合与实践
问题情境:如图
,在矩形
中,
,
,将矩形
绕点
顺时针旋转得到矩形
.使得点
落在
的延长线上,
分别交
,
于点
和点
.
初步探究:(
)
的形状是______.
深入探究:(
)如图
,延长
交
于点
,延长
交
于点
,请判断
与
的数量关系,并说明理由.
拓展延伸:(
)如图
,将矩形
沿射线
方向平移得到矩形
,当点
落在
上时,延长
交
于点
,请直接写出四边形
的面积.
问题情境:如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdd511e3eb724a9add64021b9b6f8c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e737bc35da650eda3825d29799b5f86f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/a0ed1ec316bc54c37c4286c208f55667.png)
初步探究:(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff58d298aecfc45f81c62bb4e70a768.png)
深入探究:(
![](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/1a7bdf7e08e931ba7df81d0e88c43596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.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/ae72f1da4f5d540dc1e6f42ea08f952e.png)
拓展延伸:(
![](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/bcdd511e3eb724a9add64021b9b6f8c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d609847e2ff3d64e5a514582c3ead0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab17635a999236e8d2e35017a208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284750727aa2c32b2477d126daefb329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a96655f05bf4cfb8bdb68a52d9e6812b.png)
您最近一年使用:0次
2024-03-20更新
|
124次组卷
|
2卷引用:2023年江苏省宿迁市沭阳县中考三模数学模拟试题