如图,
是
的切线,切点为A,PA=2
,∠APO=30°,则
的半径为( )
![](https://img.xkw.com/dksih/QBM/2011/10/17/1573267551084544/1573267606298624/STEM/f9b29b42bc0f4002b58f6f619b7ff2cc.png?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef812f839622326a7d7027cc806aaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/2011/10/17/1573267551084544/1573267606298624/STEM/f9b29b42bc0f4002b58f6f619b7ff2cc.png?resizew=172)
A.1 | B.![]() |
C.2 | D.4 |
2011·山东枣庄·中考真题 查看更多[4]
(已下线)2011年初中毕业升学考试(山东枣庄卷)数学(已下线)2012届湖南省临武县楚江中学初中毕业考试模拟数学试卷(五)广东省惠州市惠东县2019-2020学年九年级上学期期末数学试题(已下线)第二十一、二十二章 圆(基础过关)-2020-2021学年京改版九年级数学上册单元测试卷
更新时间:2019-01-30 10:14:09
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