1 . 如图,正方形
的边长为15,点E为正方形
内一点,
,将
绕点B按顺时针方向旋转
得到
,连接
,延长
交直线
于F点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/8fd7a52b-daa5-4a1d-a068-9e692705e5e2.png?resizew=159)
(1)求证:
;
(2)试判断四边形
的形状,并说明理由;
(3)若延长
交
边于点G,求
的值;
(4)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1070d38d2fea1dc88c6eb31d320b763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350e954f629c1901a5cec03558319e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a39031202d527f3ba312ae3f45972e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/8fd7a52b-daa5-4a1d-a068-9e692705e5e2.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e55699ae92b39759925e60cc1287370.png)
(2)试判断四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d42bc18ba297a2577944a3b7765eafe.png)
(3)若延长
![](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/267bc899441e7203bbe4e245cd7346f3.png)
(4)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7558aa5068ceb3d3a35bf56422418dea.png)
您最近一年使用:0次
名校
2 . 如图,在正方形
中,
,点
分别在边
和
上.且
.
与
交于点
,点
是
的中点.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0acaca7ce64a0f698cd854915fffc06.png)
__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e29fcd40e54920711de689e10933a3.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/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc58788441e3efd15ed35c324b38b0a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0acaca7ce64a0f698cd854915fffc06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e29fcd40e54920711de689e10933a3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/6/52799310-9a47-42b1-8c39-8ae8dc10357f.png?resizew=140)
您最近一年使用:0次
2024-04-06更新
|
133次组卷
|
2卷引用:2023年海南省海口市龙华区海南华侨中学初中学业水平考试仿真试题数学模拟预测题
3 . 已知正方形
为对角线
上一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/c528c281-c683-488c-9c31-76ecd7870f67.png?resizew=470)
(1)如图①,连接
求证:
;
(2)如图②,点F是
延长线上一点,
,
交
于点G.
Ⅰ:判断
的形状并说明理由.
Ⅱ:若点G为
的中点,且
,求
的长.
(3)如图③,点F是DE延长线上一点,
,
交
于点G.
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54437040defadc43560cd2ccced267bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/c528c281-c683-488c-9c31-76ecd7870f67.png?resizew=470)
(1)如图①,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6294f8b30e51b13843e9166291217b4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/191576fee601e7ab5bd9bd48e9c10708.png)
(2)如图②,点F是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0136a534af8311391c2a8e532614aa02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
Ⅰ:判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4da8c9541c01c2fa51788ed30cd6a9.png)
Ⅱ:若点G为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
(3)如图③,点F是DE延长线上一点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0136a534af8311391c2a8e532614aa02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d96a5d40d0aea9f4398ca4d0fe9b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1484f6bf8eae600845e4c937fff6a260.png)
您最近一年使用:0次
4 . 如图,在等腰直角
中,
,点
分别为边
的中点,点
为线段
上一点,现将线段
绕点
顺时针旋转
得到线段
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/eb64b52f-b137-4048-a8ff-02507bc66f49.png?resizew=201)
(1)求证:
;
(2)若
,连接
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4acb52506dac469ce84c4536b8b56dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e675a92cad72c65aa4071b9d9e226090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b5b0837bdff9b8c9a0dcd89f24e6f56.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/eb64b52f-b137-4048-a8ff-02507bc66f49.png?resizew=201)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f60477a6b04e624804ad26a5dfcfbd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8816e2f6a68a26d3491dc73c14cb3821.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c118858379800688c993a8b61270b356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ddd6c54187d6eba56631efc0dc9c246.png)
您最近一年使用:0次
5 . 如图,正方形
中,边长为4,
为
的中点,
为正方形内部一点,连结
、
,若
平分
且
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/71755ecf-0c8b-45a8-beca-d3ba9f7825b3.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7316430d26a6f4bcc0bdadfd1a5330a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3cd8fbcd9eb594adb8367795d444d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/71755ecf-0c8b-45a8-beca-d3ba9f7825b3.png?resizew=123)
A.![]() | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
6 . 如图,在边长为6的正方形
内作
,
交
于点E,
交
于点F,连接
,将
绕点A顺时针旋转
得到
.若
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192155e6a3aade305b76b1eb7c75e30c.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/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc727c642cbc2181476b7dd8eca471e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc95af9238cf516b1f60fd4c51b409a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2023-12-31更新
|
353次组卷
|
6卷引用:2024年海南省东方市 中考备考第一轮模拟检测一模数学模拟试题
2024年海南省东方市 中考备考第一轮模拟检测一模数学模拟试题黑龙江省齐齐哈尔市西部县区2023-2024学年九年级上学期期末数学试题黑龙江省齐齐哈尔市讷河市2023-2024学年九年级上学期期末数学试题江苏省常州市2022-2023学年八年级下学期期中数学试题(已下线)专题5.4 正方形与45°模型-2022-2023学年八年级数学下册同步精品课堂(浙教版)(已下线)专题06 四边形模型(六大题型)-【好题汇编】备战2023-2024学年八年级数学下学期期末真题分类汇编(山东专用)
7 . 如图,点M、N分别在正方形
的边
上,且
,把
顺时针旋转一定角度后得到
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/57e979ec-bf7b-4aa4-9137-bdfe7e9a5193.png?resizew=143)
(1)填空:
绕旋转中心______点,按顺时针方向旋转______度得到
;
(2)求证:
;
(3)若
,
,求正方形
的边长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8dbf16d3adcc74fbea454665bc66ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4794cf7c57bdd4825d9e6615e2527a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eda61683bb1d4d62441f0625097b477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/57e979ec-bf7b-4aa4-9137-bdfe7e9a5193.png?resizew=143)
(1)填空:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eda61683bb1d4d62441f0625097b477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14e21c69164e9bd66069abab046c2cc.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb909eaf6572dc2a0cac7557cb91d2cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b6497c7cada9c849f92d9ad00547ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2023-11-28更新
|
111次组卷
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2卷引用:海南省省直辖县级行政单位文昌市2023-2024学年九年级上学期期中数学试题
名校
8 . 如图,正方形
的边长为4,
,点E是直线
上一个动点,连接
,线段
绕点B顺时针旋转
得到
,则线段
长度的最小值等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f504cd6d53cbf28a697d0ed5caf8fe6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-14更新
|
277次组卷
|
11卷引用:2024年海南省临高县九年级中考一模数学试题
2024年海南省临高县九年级中考一模数学试题广东省广州市育才中学2022-2023学年九年级上学期第一次月考数学试卷浙江省金华市义乌市义乌市稠江中学2022-2023学年九年级上学期期中数学试题广东省广州市中山大学附属中学2022~2023学年九年级数学上学期期末考试试卷2023年安徽省六安市金寨县东片七校联考数学中考模拟试卷(二) 广东省广州市培正中学2023-2024学年九年级上学期月考数学试题广东省广州市越秀区培正中学2023-2024学年九年级上学期期中数学试题广东省广州市南奥实验学校2022-2023学年九年级上学期月考数学试题(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)江苏省南通市通州区2021-2022学年八年级下学期期末数学试题(已下线)江苏八年级下期末真题精选(压轴60题19个考点专练)-【满分全攻略】2022-2023学年八年级数学下学期核心考点+重难点讲练与测试(苏科版)
名校
9 . 如图,已知正方形
的边长为4,点E为边
上一点,
,在
的右侧以
为边作正方形
,H为
的中点,则
的长为______ ,
的长为______ .
![](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/50f218914337edd06e59e75d90b777e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d0e8404f347a0eb4c76f4d25d9bdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/7/5d4c2bf5-7300-419b-9094-844edc7a6bcf.png?resizew=153)
您最近一年使用:0次
10 . 如图1,已知四边形
为正方形,连接
.
(1)求证:
;
(2)如图2,若正方形
的边长为4,
是
边上的一个动点.
①请判断线段
与
有怎样的数量关系和位置关系,并说明理由;
②连接
,若
,求线段
长;
③求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20ad470fa9af2157a57c7f2de76b894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9962e4b61d0a856eaeb32aa6f6864247.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/14/b1b85616-ca71-4fca-8d95-321abaef70e1.png?resizew=324)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dbf9d9cd815d0ad70ed790f386d2257.png)
(2)如图2,若正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
①请判断线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
②连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1364213f546b37f8764ddcb59e36ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
③求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d043f6d119c5f3ecc361fa0cfe0175.png)
您最近一年使用:0次