如图,
是
的直径,
为弦,且
,垂足是点
,已知
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/7/91cc88b7-4372-469c-8b2f-b374cd3bd8b6.png?resizew=153)
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77e3c1c236141d6118429fade0a9b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e892cca87a17f46a5cacf0885bbc1234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4189a0821a0ffab9dc171ecd279ba442.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/7/91cc88b7-4372-469c-8b2f-b374cd3bd8b6.png?resizew=153)
A.30° | B.60° | C.25° | D.35° |
更新时间:2023-01-05 22:44:54
|
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【推荐1】如图,在边长为1个单位长度的小正方形组成的网格中,小正方形的顶点叫格点,格点A,B的连线与格点C,D的连线交于点E,若经过点B,D,E作圆,则图中阴影部分的面积为( )
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】
是
的外接圆,
是直径,
的平分线交
于点D,过D点作
的切线
交
的延长线于点E.有下面四个结论:①
;②
;③
;④
.其中正确结论的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/1/bfe58a17-7a37-4c1e-8bea-047e01ad374d.png?resizew=141)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e393a210bd76b5a7499c64b822c3f07b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/1/bfe58a17-7a37-4c1e-8bea-047e01ad374d.png?resizew=141)
A.4个 | B.3个 | C.2个 | D.1个 |
您最近一年使用:0次