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已知⊙O的面积为9πcm2,若点0到直线l的距离为πcm,则直线l与⊙O的位置关...
已知⊙O的面积为9πcm2,若点0到直线l的距离为πcm,则直线l与⊙O的位置关系是( )
A.相交
B.相切
C.相离
D.无法确定
考点分析:
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