如图,在Rt
中,
平分
交
于点
为
上一点,经过点
的
分别交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/5f6dc370-6dbc-4580-a2dc-6fbb6c4796ce.png?resizew=153)
(1)求证:
是
的切线;
(2)若
,求
的半径;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbfec790ed848aa4f51dca80b2d4919.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/1ed5ea3e7db5a6943f2915d32339709c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ee159aea403220848b14b8e81dc20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adaa82a6500e3a95a24168f7df243790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ae536809b1161fd4e83fdc7f42be96.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/5f6dc370-6dbc-4580-a2dc-6fbb6c4796ce.png?resizew=153)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881f21399c7da4e1761450e88ccb19c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e6dfdb4e5049440c2ad0ec5eed5f63.png)
更新时间:2023-12-14 16:07:07
|
【知识点】 图形的性质
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知,直角三角形
如图所示放置,
,反比例函数
经过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/b90e12a5-654f-4aee-b55e-2af23bc11fac.png?resizew=165)
(1)求点A,B的坐标及
的值;
(2)求反比例函数及直线
的表达式;
(3)将直线
向上平移
个单位长度后,与反比例函数图象只有一个交点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a19f3d7e7b598ed3b524eec99acb7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4725178926e7c9976d2b3230ff0ea7a1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/b90e12a5-654f-4aee-b55e-2af23bc11fac.png?resizew=165)
(1)求点A,B的坐标及
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求反比例函数及直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)将直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ec1e326713ddcd6dd66a24a809bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
【推荐2】在正方形网格中,建立如图所示的平面直角坐标系xOy,△ABC的三个顶点都在格点上,点A的坐标为(4,4),请解答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/14/3af9b0ef-abbe-4abc-887b-f4373c1cd3db.png?resizew=186)
(1)画出△ABC关于y轴对称的
;
(2)将△ABC绕点C逆时针旋转
,画出旋转后的
;
(3)在(2)的条件下,求AC扫过的面积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/14/3af9b0ef-abbe-4abc-887b-f4373c1cd3db.png?resizew=186)
(1)画出△ABC关于y轴对称的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)将△ABC绕点C逆时针旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ff7caec4fdd8fb54a3ffbff9692414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ebf04bf1911cfd8566b4350fd6d41e.png)
(3)在(2)的条件下,求AC扫过的面积.
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