如图,以O为圆心的两个同心圆中,大圆的弦AB是小圆的切线,点P为切点.若大圆半径为2,小圆半径为1,则AB的长为( )
![](https://img.xkw.com/dksih/QBM/2019/3/4/2153324177629184/2153906223128576/STEM/f9dbba68159f46db83a00c2430d0c8bf.png?resizew=100)
![](https://img.xkw.com/dksih/QBM/2019/3/4/2153324177629184/2153906223128576/STEM/f9dbba68159f46db83a00c2430d0c8bf.png?resizew=100)
A.2![]() | B.2![]() | C.![]() | D.2 |
18-19九年级上·北京海淀·期中 查看更多[9]
更新时间:2018-11-29 21:17:07
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【推荐1】如图,边长分别为4和8的两个正方形
和
并排放在一起,连接
并延长交
于点T,交
于点P,则
的长等于( )
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【推荐2】如图,在矩形
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出发沿
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【推荐1】如图,
是
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的切线交
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【推荐2】如图,
是
的直径,C为
上一点,过点C的切线与
的延长线交于点P,若
,则
的长为( )
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