如图,已知⊙O的半径为5cm,弦AB=6cm,则圆心O到弦AB的距离是( )
![](https://img.xkw.com/dksih/QBM/2017/11/27/1826221759643648/1827897655099392/STEM/abc93433b92a46998f2aaf080982c92a.png?resizew=80)
![](https://img.xkw.com/dksih/QBM/2017/11/27/1826221759643648/1827897655099392/STEM/abc93433b92a46998f2aaf080982c92a.png?resizew=80)
A.1cm | B.2cm | C.3cm | D.4cm |
更新时间:2016-12-06 03:11:20
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】在⊙O中,弦AB的长为8,圆心O到AB的距离为3,则⊙O的半径为( )
A.5 | B.8 | C.3 | D.6 |
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