如图，长方形ABCD的两条边长分别为8m和6m，四边形OEFG的面积是4m2，则阴影部分的面积为（）。A.32m2B.28m2C.24m2...

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问题如图，长方形ABCD的两条边长分别为8m和6m，四边形OEFG的面积是4m2，则阴影部分的面积为（）。

A.32m2 B.28m2 C.24m2 D.20m2

选项

答案 B

解析

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