如图,
内接于
,
,
,垂足为
,
,
.则
的长( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/17/e0c34176-c96c-406d-86b7-480727c3b76c.png?resizew=103)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81e24376a13d648c2ed0dc73bc710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454328a8e75953fdb0835ce80d9566e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49437f474e5805688dff21ded2d1fd7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/17/e0c34176-c96c-406d-86b7-480727c3b76c.png?resizew=103)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-12-17 21:31:27
|
相似题推荐
单选题
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(0.4)
名校
【推荐1】用两个全等且边长为4的等边三角形
和
拼成菱形
.把一个60°角的三角尺与这个菱形叠合,使三角尺的
角的顶点与点A重合,两边分别与AB,AC重合,将三角尺绕点A按逆时针方向旋转,在转动过程中,当
的面积是
时,
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80651f797ab9dccfd7163c605b091ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
A.2或4 | B.2或6 | C.4或6 | D.0或8 |
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【推荐2】已知⊙O的半径为2,弦
长分别为
和
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d54431bbb28ebd98db5c1dc6083a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
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【推荐1】如图,点P是正方形
的对角线
上一点,
,
,垂足分别为E,F,连接
,
,下列结论:①
;②
;③
与四边形
的面积相等.其中正确的结论是( )
![](https://img.xkw.com/dksih/QBM/2021/6/28/2752938693754880/2773422743355392/STEM/aee8ee52f29e4c52ada58c37a91a746f.png?resizew=198)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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A.①② | B.①③ | C.②③ | D.①②③ |
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【推荐2】如图,以AB为直径的半圆圆心为O,AB=10,折叠半圆使点A,点B都与圆心O重合,折痕分别为CD,EF,连接DF,则图中阴影的面积为( )
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715145476063232/2717104138682368/STEM/cc489191-ab09-4b59-a2e1-86cbb5d16832.png)
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715145476063232/2717104138682368/STEM/cc489191-ab09-4b59-a2e1-86cbb5d16832.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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(0.4)
【推荐1】如图,
是
的弦,点
在
上,点
是
的中点.将
在沿
折叠后恰好经过点
,若
的半径为
,
则
的长是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/7/ebefa972-36fd-4fee-9b23-769ef472600b.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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【推荐2】如图,已知四边形
为
的内接四边形,点
为
上一点,其中
的半径为
,
,则
的长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/25fcc117-ca00-42c3-a139-ae245567ac91.png?resizew=159)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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您最近一年使用:0次
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(0.4)
名校
【推荐1】如图,
、
为⊙O的两条弦,若
,
,则⊙O的半径为( )
![](https://img.xkw.com/dksih/QBM/2021/12/16/2873883358257152/2875321548587008/STEM/5d27ad93-0323-4836-8cad-acb71dd8846a.png?resizew=161)
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您最近一年使用:0次
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较难
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【推荐2】已知
内接于
,如果满足
,
,
的
恰有两个,那么
的取值范围是( )
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C.![]() | D.![]() ![]() |
您最近一年使用:0次