As in the figure,there are four circle with radius of 2.The four circles are apart from each other.Link their centers to form a quadrilateral,then the total area of the shaded parts in the figure is( )
【考点】多边形内角与外角.
【答案】B
【解答】
【点评】
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发布:2024/5/27 14:0:0组卷:61引用:1难度:0.9