1 . 如图,在平面直角坐标系中,一次函数
的图象与正比例函数
的图象交点为
.求:
(1)在
正半轴上求一点
使
为等䁏三角形,请求出符合条件的点
的坐标.
(2)若
点是平面直角坐标系任意一点,
是以
为直角边的等腰直角三角形,请直接写出
点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54019221ce4994d43b2ed48b274ef863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73ac1756e6cc3266bd7198a024f871af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/d08a2fc8-7735-4654-956d-f169b1ec69da.png?resizew=162)
(1)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee780a7d0e8811fb04d955304543fce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4c625a55ef1d2920a0605d52c8da23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2023-12-28更新
|
342次组卷
|
3卷引用:广东省梅州市兴宁市石马中学2023-2024学年八年级上学期期中数学试题
名校
2 . 如图,在正方形
中,点E、F为
和
上的点且
,连接
与
相交于点G,若
,空白部分面积为
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ad1e4732310d4f11ec0dbf17fdb56b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca6ebd5ba3df7d2b4e846de52cfe4ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1fac23fee63e44d1d023f2c58e77b53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996e1fae813e4943df30382df0ed8450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-09-03更新
|
286次组卷
|
6卷引用:2024年广东省梅州市丰顺县龙泉中学中考一模数学试题
(已下线)2024年广东省梅州市丰顺县龙泉中学中考一模数学试题浙江省宁波市镇海区镇海区尚志中学2022-2023学年八年级下学期期中数学试题陕西省西安市雁塔区陕西师范大学附属中学2023-2024学八年级上学期月考数学试题陕西省陕西师范大学附属中学2023-2024学年九年级上学期第一次月考数学试题(已下线)2023年四川省宜宾市中考数学真题变式题7-12题2023年广东省茂名市化州市中考三模数学试题
3 . 如图,在矩形
中,
,
,点
是线段
上一动点,将线段
绕点
顺时针转90°得到线段
,连接
,则
最小值为 _____ .
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3f7368811340328acf5be13f499d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8049be7e7cd824771471bfac2bf70ae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8049be7e7cd824771471bfac2bf70ae9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/10/4844f125-4ca2-4522-9812-1ab733e7fefa.png?resizew=179)
您最近一年使用:0次
2023-08-08更新
|
116次组卷
|
4卷引用:2023年广东省梅州市大埔县玉瑚中学中考一模数学试题
2023年广东省梅州市大埔县玉瑚中学中考一模数学试题2023年广东省惠州市一中教育集团中考二模数学试题福建省福州市仓山区福州现代中学2023-2024学年九年级上学期开学考试数学试题(已下线)23 图形的旋转(题型精讲精练)-【题型分类精粹】2023-2024学年九年级数学上学期期中期末复习讲练系列【考点闯关】(人教版)
名校
4 . 如图,在
中,
,
是
的角平分线交
于点
,过
作
于点
,点
在
上,且
.
(1)求证:
;
(2)求证:
;
(3)若
,
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62ca3d0dd0057a11181c43aeb6b40b6.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b9f98fe35d1baada6fa249d117363e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/6/755cc8cd-0764-42ca-b12d-ed077e526513.jpg?resizew=235)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2ab6940dca62be1f3b2b5f8531990.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0247dfff7366e7a60b527547b978b3b.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43dd38b9c7230558df89144be5673ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0ea60c40d763b93ef8df33d8047504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
2023-08-04更新
|
548次组卷
|
4卷引用:广东省梅州市大埔县三河中学2022-2023学年八年级下学期期中数学试题
广东省梅州市大埔县三河中学2022-2023学年八年级下学期期中数学试题黑龙江省哈尔滨工业大学附属中学校2021-2022学年八年级上学期开学考试数学试题湖南省长沙市湘郡培粹实验中学2021-2022学年八年级上学期第一次月考数学试题(已下线)专题05 全等三角形压轴题训练-【好题汇编】备战2023-2024学年八年级数学上学期期中真题分类汇编(人教版)
5 . 等腰三角形
中
,且内接于圆O,D、E为边
上两点(D在F、E之间),分别延长
、
交圆O于B、C两点(如图1),记
,
.
(1)求
的大小(用α,β表示);
(2)连接
,交
于H(如图2).若
,且
.求证:
;
(3)在(2)的条件下,取
中点M,连接
、
(如图3),若
,
①求证:
,
;
②请直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73153657848013d2a1c3247d7f84ddeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd3722ce5a109be331b49a0c49484865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.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/decaaa999bfb7d74d1d69a3dd2be0a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7523f8460a7270e8449f0160bfa8e92.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/17/8953231d-70f3-428a-a485-c2ca5f4aa006.png?resizew=438)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d5a9690d02c2b1e6bbd6fd05225c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca43b3d79ba37794824b042fdb0c1618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b5d79d6942f6452163bdcc1df286ce.png)
(3)在(2)的条件下,取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9e953a4a5f98c96bbe67cbaadf76d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0448d993f5a4d2ae816f4df42faa042.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50e6c7953e79264dbde845b7dda8a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179f546c3c4eef0eb5e0f97b21512ffe.png)
②请直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9feb62419865ef9b70a33449aaaf82f4.png)
您最近一年使用:0次
2023-07-21更新
|
364次组卷
|
8卷引用:广东省梅州市丰顺县小胜中学2022-2023学年九年级下学期开学考试数学试题
广东省梅州市丰顺县小胜中学2022-2023学年九年级下学期开学考试数学试题广东省梅州市丰顺县璜溪中学2022-2023学年九年级下学期开学考试数学试题2022年浙江省宁波外国语学校中考数学一模试题浙江省温州市部分学校2022-2023学年九年级上学期数学期末学情调查试题(已下线)浙江省温州市部分学校2022-2023学年九年级上学期数学期末试题变式题21-242023年浙江省宁波市鄞州区宁波市春晓中学等5校中考一模数学试题(已下线)2023年浙江省宁波市中考数学真题变式题21-24题2024年浙江省杭州市观成中学教育集团中考数学模拟预测题(4月份)
6 . (1)【问题原型】如图①,在正方形
中,点
分别在边
,
上,且
,点
为
,
的交点,求证:
.
(2)【探究发现】某数学兴趣小组,在尝试对上述问题进行变式,转换了问题的背景图形:如图②,在等边
中,点
,
分别在边
,
上(不与三角形顶点重合),且
,点
为
,
的交点,请画出图形并求
的度数.
(3)【拓展提升】利用【探究发现】的思路及结论,继续探究,尝试解决如下问题:
如图③,在菱形
中,
,点
分别在边
,
上,且
,
,点
为
,
的交点,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.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/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff63fd16efe9dac36da5eaa3fc0203e1.png)
(2)【探究发现】某数学兴趣小组,在尝试对上述问题进行变式,转换了问题的背景图形:如图②,在等边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ffab06abe01c9b48aa4692c73d8b7c6.png)
(3)【拓展提升】利用【探究发现】的思路及结论,继续探究,尝试解决如下问题:
如图③,在菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.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/3b17ebc8fad227cc3bb7d0353969b1de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9b11f2ea112fff1885811bd5bc73cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ffab06abe01c9b48aa4692c73d8b7c6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/19/356c28a3-9b20-4a4c-865c-ce1fd5da6596.png?resizew=556)
您最近一年使用:0次
7 . 如图,在矩形
中,
,
,
为
边上一动点,作
,且
.连接
,
.当
时,
的面积为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.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/992a19339adac3a2f1aab1fbc11b1c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b70c662d45c1b741ea5ed7a31007cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74e0212491e4b2d7525de9a87fab3a6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/18/8de6f989-b6df-4841-b2e4-7553bec1a31e.png?resizew=181)
您最近一年使用:0次
8 . 在
中,
,
,直线l经过点A,过点B、C分别作l的垂线,垂足分别为点D、E.
【特例体验】(1)如图1,若直线
,
,则线段
的长为______.
【探究应用】
(2)如图2,若直线l从图1状态开始绕点A顺时针旋转
时,线段
、
和
的数量关系是________;
(3)如图3,若直线l从图1状态开始绕点A顺时针旋转
时与线段
相交,探究线段
、
和
的数量关系并说明理由
(4)若
,
(a,b均为正数),请你直接写出以点B、D、C、E为顶点的四边形的面积.
![](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)
【特例体验】(1)如图1,若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a1eb9d682e2bd181f3b0f5115160b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb08f6a798dc293f3d8de281190f65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
【探究应用】
(2)如图2,若直线l从图1状态开始绕点A顺时针旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec18b43a3d835d6da87689949670d70.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
(3)如图3,若直线l从图1状态开始绕点A顺时针旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/898fe57f99488ab0bd4dd4ca741c659b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9001f0c06cf2c8f893a38b1dabe6219e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d57dfe6b153c88751ff8bfd2809df9.png)
您最近一年使用:0次
2023-07-06更新
|
410次组卷
|
5卷引用:广东省梅州市大埔县西河中学2022-2023学年七年级下学期期末数学试题
9 . 如图
,
、
、
三点在一直线上,分别以
、
为边在
同侧作等边
和等边
,
交
于点
,
交
于点
.
(1)
吗?
吗?请说明理由.
(2)如图2,若
、
、
不在同一直线上,那么这时上述结论成立吗?若成立请证明.
(3)在图1中,若连接
、
,你还能得到什么结论?(写出结论,不需证明)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb961bd7db3adb76af2d4cedb611bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc12fd638cffc9d0f1daf001b405eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdd9f345915ae742ed3dcd3f9678264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/3/89b4c81b-0bf8-413f-9a75-e34d6046414c.png?resizew=450)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53bec9f2dc99d0188f362f11c0c23739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d550a92fd2af6f57cc7407cc326b1ea7.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)在图1中,若连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
您最近一年使用:0次
10 . 已知
中,
平分
,
交
于点
,
平分
,交
于点
,
与
交于点
.
(1)如图
,求证:
.
(2)如图
,连接
,求证:
平分
.
(3)如图
,若
,
,
,求
的值.
![](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/d39b8d91afc34e4a9b0fdbb6bafb9087.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe03564dd19f3df61d919f931c24bf7f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/24/17be8b1f-547b-4058-8e81-86e6846edd08.png?resizew=154)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/24/9c951a82-d95a-46ae-95df-74a74ed4b180.png?resizew=153)
(3)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb3d1070981fed5ca65a34bb2282e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f498a42655ef0895e4749d4dc665a54e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/24/92786bc6-f0d7-49fe-9a12-d630d8da184f.png?resizew=146)
您最近一年使用:0次