如图,
,
是
的切线,点
,
是切点,点
是
上一点,连结
和
.若
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/2021/1/24/2643009821073408/2646384482164736/STEM/a4d48ecb-4b04-456c-965c-409cf261856d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d777d15cd733338ecfd0ea63819f62c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c543c3ddc3723fde6bbfca3ea3b921b.png)
![](https://img.xkw.com/dksih/QBM/2021/1/24/2643009821073408/2646384482164736/STEM/a4d48ecb-4b04-456c-965c-409cf261856d.png)
A.50° | B.65° | C.75° | D.130° |
更新时间:2021-01-29 08:25:55
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,⊙O的半径为4,直径AB与直径CD垂直,P是
上一点,连接PC,PB分别交AB,CD于E,F,若
,则BF的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f9353ca110c8b81561455b232dbc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec417206428b994b64540a784a336673.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/1844ad05-33f7-4a3c-8af0-345169c97c1d.png?resizew=161)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,四边形ABCD是
的内接四边形,且
,连接BD,若
的半径为4,则BD的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/2/eb4a6cee-89b4-4342-a026-4d30faab7bbe.png?resizew=134)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3330ae77789046c31ac401da5fa4fc4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/2/eb4a6cee-89b4-4342-a026-4d30faab7bbe.png?resizew=134)
A.![]() | B.3 | C.4 | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】如图,在
中,
,以边
上的一点O为圆心,
长为半径的圆与
相切于点D,分别交
于点E,F,连接
.若
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/5e19b367-32e9-4eab-b927-549a04f2cabc.png?resizew=168)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dc62e10004e73908091338362917da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9392b5c0d2cdf3b01ca3cfb691e3351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/5e19b367-32e9-4eab-b927-549a04f2cabc.png?resizew=168)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】如图,
是
的直径,
是
的切线,连接
交
于点
,连接
,
.若
,
,则
的长为( )
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998329f9cdb86f5d60d7d5d70fc3781e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e790633cd1586a4f4db097c915280689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
A.![]() | B.1 | C.![]() | D.![]() |
您最近一年使用:0次