如图,
为
的直径,点
在
的延长线上,过点
作
的切线,点
为切点,
,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958743336534016/2962975940231168/STEM/d526c095-55d1-4e0e-bba2-da52c4f9cbf8.png?resizew=183)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2022/4/15/2958743336534016/2962975940231168/STEM/d526c095-55d1-4e0e-bba2-da52c4f9cbf8.png?resizew=183)
A.3 | B.5 | C.6 | D.8 |
更新时间:2022-04-23 16:29:20
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