题目列表(包括答案和解析)
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如图24—A—6,两个同心圆,大圆的弦AB与小圆相切于点P,大圆的弦CD经过点P,且CD=13,PC=4,则两圆组成的圆环的面积是( )
A.16π B.36π C.52π D.81π
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