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圆O的半径为6cm,P是圆O内一点,OP=2cm,那么过点P的最短弦的长等于( ...
圆O的半径为6cm,P是圆O内一点,OP=2cm,那么过点P的最短弦的长等于( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103102433580271094/SYS201311031024335802710008_ST/0.png)
cm
B.8
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103102433580271094/SYS201311031024335802710008_ST/1.png)
C.6
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103102433580271094/SYS201311031024335802710008_ST/2.png)
cm
D.12cm
考点分析:
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