如图,在菱形
中,对角线
与
相交于点
,过点
作
交
的延长线于点
.
是平行四边形;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6dac4aff5d18a175261270b8d0f0b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778f6f1b4e753c19ed472d81044ad180.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3787e88ccc5f3a4ea0a00922010784f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddeb9efb488b31ae67efd29efd56b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a2f6a82fa8f81ae57c3c3318fb1203.png)
更新时间:2024-05-20 21:25:03
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图,在
中,
,
,以点A为圆心,任意长为半径画弧交
于点M,交
于点N,分别以点M和N为圆心,大于
的长为半径画弧,两弧交于点H,作射线
交
于点D,延长
到点E,使
.过点E作
交
的延长线于点F,连接
.
是平行四边形;
(2)直接写出点E到
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f138deab9e5a4baaada287ed1a78df9.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94e1ca12da27075e5241b7c7ce74672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeffef0c93affeb1442c40aa8ce5b772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0133c119bdff050752f8912a4ace330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b8bcdebafe3c356df23ac5ddb1a845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08c14e87a2bcf7090eab2fea73667d2.png)
(2)直接写出点E到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,点A在反比例函数
(x<0)的图象上.若点A的横坐标为m,点C的坐标为(m,0),连接AC,点M是AC的中点,过点M作AC的垂线,分别与反比例函数的图象及y轴交于B、D两点.
![](https://img.xkw.com/dksih/QBM/2021/8/6/2780100198916096/2781793196556288/STEM/d7cd3e03513544b0bd5abbed53ab564c.png?resizew=130)
(1)直接填空:点M的坐标是____________;(用含m的代数式表示)
(2)连接AB、BC、CD、DA,求证:四边形ABCD是菱形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2106783dfc565f66ee72a28338e9df.png)
![](https://img.xkw.com/dksih/QBM/2021/8/6/2780100198916096/2781793196556288/STEM/d7cd3e03513544b0bd5abbed53ab564c.png?resizew=130)
(1)直接填空:点M的坐标是____________;(用含m的代数式表示)
(2)连接AB、BC、CD、DA,求证:四边形ABCD是菱形.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图1,四边形
均为正方形.可得:
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/29/f88d52a8-9bcb-4d95-857d-d44be9712408.png?resizew=122)
(1)如图2,四边形
均为菱形,且
.求证:
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/29/06cf28da-f578-463b-8978-d5a2a2531920.png?resizew=91)
(2)如图3,四边形
均为菱形,点E在边
上,点G在
延长线上.若
的面积为8,请直接写出菱形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20ad470fa9af2157a57c7f2de76b894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1596f7c0d0bab4e7e586d705d323e0d8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/29/f88d52a8-9bcb-4d95-857d-d44be9712408.png?resizew=122)
(1)如图2,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20ad470fa9af2157a57c7f2de76b894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e6f5241f614c7d310cbf3e25a6d615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1596f7c0d0bab4e7e586d705d323e0d8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/29/06cf28da-f578-463b-8978-d5a2a2531920.png?resizew=91)
(2)如图3,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20ad470fa9af2157a57c7f2de76b894.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/25fbef7e12a03e2c2ec0498ea2dd6f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1f13007c6d134c50004c62dc240707.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/29/97a73fb4-abd7-4885-adf3-98e8d772fa2c.png?resizew=114)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,方格纸中的每个小正方形的边长为1,线段AB和线段CD的端点都在格点上;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/6/578db3fb-6cbf-40f7-9920-e6d6b2f6cb67.png?resizew=189)
(1)在图中画出以线段AB为对角线的正方形AEBF,点E、F均在格点上;
(2)在图中画出以线段CD为对角线菱形CGDH(非正方形),连接GH,并直接写出GH的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/6/578db3fb-6cbf-40f7-9920-e6d6b2f6cb67.png?resizew=189)
(1)在图中画出以线段AB为对角线的正方形AEBF,点E、F均在格点上;
(2)在图中画出以线段CD为对角线菱形CGDH(非正方形),连接GH,并直接写出GH的长.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,AB是△ABC外接圆⊙O的直径,过⊙O外一点D作BC的平行线分别交AC,AB于点G,E,交⊙O于点F,连接DB,CF,∠BAC=∠D.
![](https://img.xkw.com/dksih/QBM/2022/5/30/2990446326800384/2994226310103040/STEM/46ce0c6d-1466-448c-b8a8-3186439fea99.png?resizew=119)
(1)求证:BD是⊙O的切线;
(2)若点E是OA的中点,CF平分∠ACB,BD=12,求BE的长.
![](https://img.xkw.com/dksih/QBM/2022/5/30/2990446326800384/2994226310103040/STEM/46ce0c6d-1466-448c-b8a8-3186439fea99.png?resizew=119)
(1)求证:BD是⊙O的切线;
(2)若点E是OA的中点,CF平分∠ACB,BD=12,求BE的长.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
真题
【推荐2】如图矩形ABCD中,AB=20,点E是BC上一点,将
沿着AE折叠,点B刚好落在CD边上的点G处,点F在DG上,将
沿着AF折叠,点D刚好落在AG上点H处,此时
.
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb90a778474aced7657b21e79d9938f.png)
(2)求AD的长;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b0da5791114871ff996c68871d560f.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb90a778474aced7657b21e79d9938f.png)
(2)求AD的长;
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9470d667da224b170dd44193ea7935.png)
您最近一年使用:0次