如图,点
,
,
,
在
上,
,若
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/2021/1/22/2641729391419392/2643634606497792/STEM/dae7a024-43da-4b85-94ed-8d17c22139e3.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b01898d4ad9757e07bddd6c26e59d1f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bef89ac0dd5ae192cd9c7222d5041b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
![](https://img.xkw.com/dksih/QBM/2021/1/22/2641729391419392/2643634606497792/STEM/dae7a024-43da-4b85-94ed-8d17c22139e3.png?resizew=152)
A.20° | B.25° | C.30° | D.40° |
更新时间:2021-01-25 11:11:17
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】下列命题中,假命题是( )
A.如果一条直线平分弦和弦所对的一条弧,那么这条直线经过圆心,并且垂直于这条弦; |
B.如果一条直线平分弦所对的两条弧,那么这条直线经过圆心,并且垂直于这条弦; |
C.如果一条直线经过圆心,并且平分弦,那么该直线平分这条弦所对的弧,并且垂直于这条弦; |
D.如果一条直线经过圆心,并且垂直弦,那么该直线平分这条弦和弦所对的弧. |
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单选题
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【推荐2】下列命题中,正确的个数是( )
同弧所对的圆心角相等;
平分弦的直径垂直于弦;
垂直于弦的直径平分弦;
直径是弦.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e636bddc1a3d7c006ac304e96cd2551.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐1】
内接于圆,延长
到D,点E在
上,连接
,
,如图所示.图中等于
与
之差的角是( )
![](https://img.xkw.com/dksih/QBM/2021/5/12/2719643134885888/2721375676661760/STEM/ce5d855f-07d4-4b6c-a504-e8ff1dad505e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc90004d4e95bb0d98aa5e6e1a74ca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://img.xkw.com/dksih/QBM/2021/5/12/2719643134885888/2721375676661760/STEM/ce5d855f-07d4-4b6c-a504-e8ff1dad505e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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