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在⊙O中,弦CD与直径AB相交于点P,夹角为30°,且分直径为1:5两部分,AB...
在⊙O中,弦CD与直径AB相交于点P,夹角为30°,且分直径为1:5两部分,AB=6厘米,则弦CD的长为多少厘米( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100835089976304/SYS201311031008350899763001_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100835089976304/SYS201311031008350899763001_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100835089976304/SYS201311031008350899763001_ST/2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100835089976304/SYS201311031008350899763001_ST/3.png)
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如图,在⊙O中,点C是
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