如图,在
中,以
为直径的
交
于点
,交
于
,延长
到
,使
,连接
.
(1)若
,求证:
,
;
(2)连接
,
,若四边形
是平行四边形,
则①
;②当
时,四边形
的面积为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](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/60ef95894ceebaf236170e8832dcf7e3.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe8bb808edb7f81fb3c14c8f3d7f0fad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d2530e7023b2345c651e8f53629ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ec1b0436ec8ae0087432e9abe4e54f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b34f036114f4436d45996b55a62d6b3.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1934eb2d22fad324650fd0835061de8e.png)
则①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1934eb2d22fad324650fd0835061de8e.png)
![](https://img.xkw.com/dksih/QBM/2020/6/18/2487252940644352/2492464332775424/STEM/70e10c84-301b-44e4-8810-56e735ea08c1.png?resizew=181)
更新时间:2020-06-25 21:14:34
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】在矩形
中,
,
.
为
边上一点,将
沿直线
翻折至
的位置,其中点
是点
的对称点,当点
落在
边上时,求
的长.
(2)如图2,点
是
边上一动点,过点
作
交
边于点
,将
沿直线
翻折得
,连接
,当
是以
为腰的等腰三角形时,求
的长;
(3)如图3,点
是射线
上的一个动点,将
沿
翻折,其中点
的对称点为
,当
,
,
三点在同一直线上时,请直接写出
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.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/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3525ddc5153fada64eaf14e50b536542.png)
(2)如图2,点
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f0805cc7a96c866df10b667ac4851e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9272e76d70b87882b81823e5de53bc14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da650ee630c36fd5ce9abb4fb826df7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4851109ebad7d40fd6e8c0ed91cde6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(3)如图3,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f9fba8a4098c1a0515286eb8d616dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知如图,
是等腰直角三角形,
,A点在x轴负半轴上,直角顶点C在y轴上,点B在x轴上方.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/7/ee57f099-4742-4e8c-8086-aa38a2bea78c.png?resizew=316)
(1)如图1,点C的坐标是
.
①若
,则
______;
②若A的坐标是
,求点B的坐标.
(2)如图2,若x轴恰好平分
,
与x轴交于点E,过点B作
轴于F,问
与
有怎样的数量关系?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/7/ee57f099-4742-4e8c-8086-aa38a2bea78c.png?resizew=316)
(1)如图1,点C的坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb24af342e2868338ef43622a28a543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
②若A的坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd0825e68122a65426840fbf07cf296.png)
(2)如图2,若x轴恰好平分
![](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/a6ce9cb2a356503a970d6466c75b564c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图,在8×8网格上,已知A(﹣2,2)、B(1,1).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/18/dfc7b213-d873-4afb-aa7f-53f3cf8328bc.png?resizew=229)
(1)将B绕A顺时针旋转90°,画出B点对应点D的位置并求其坐标.
(2)若A绕某点旋转90°可与B重合,画出旋转中心C的位置并求其坐标.
(3)直接写出网格上使∠APB=45°的格点P的个数.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/18/dfc7b213-d873-4afb-aa7f-53f3cf8328bc.png?resizew=229)
(1)将B绕A顺时针旋转90°,画出B点对应点D的位置并求其坐标.
(2)若A绕某点旋转90°可与B重合,画出旋转中心C的位置并求其坐标.
(3)直接写出网格上使∠APB=45°的格点P的个数.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐2】如图,
是
的直径,点
在
上,
是
的切线,
,
的延长线与
交于点
.
;
(2)若
,
,求
的长.
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9c7cbcc38b28d45c8539710e5b260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4b5ad8d52ae816f6cbd9a83463738f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da34ca79dff70e12ee89de5a28673b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb3d1070981fed5ca65a34bb2282e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知:如图,M是
的中点,过点M的弦
交弦
于点C,设
的半径为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/4/90ba1ce2-7f52-44db-b2e1-dd5f06170ff0.png?resizew=140)
(1)求圆心O到弦
的距离;
(2)求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](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/095ab4a92bf822e175d370e6d0c8a730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaeaa54df10ccadfa4edca7871c972f3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/4/90ba1ce2-7f52-44db-b2e1-dd5f06170ff0.png?resizew=140)
(1)求圆心O到弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/474c0dc8c11624c4997e48b143bb09a5.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐2】如图,等边
内接于
,P是
上任一点(点P与点A、B重合),连接AP、BP,过点C作
交PA的延长线于点M.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/25/cb1159f2-8348-41d3-a36e-7769e841fbb0.png?resizew=316)
(1)求证:
;
(2)若PA=1,PB=2,求四边形PBCM的面积;
(3)在(2)的条件下,求AB的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9925407467278420029b8ab7b9561a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64dbdf7f239f366ad8c5523bc066224a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/25/cb1159f2-8348-41d3-a36e-7769e841fbb0.png?resizew=316)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da02f5dcb936df4e23dc199821d5e079.png)
(2)若PA=1,PB=2,求四边形PBCM的面积;
(3)在(2)的条件下,求AB的长度.
您最近一年使用:0次