发布时间:2025-01-24 11:07:13
因为剩下部分和原来的表面积都是由两个正方形和四个侧面组成,用138-98便得到了锯下的正方体的四个侧面的面积,40.正方体六个面相等,一个面就是10平方米。所以锯下的正方体表面积就是60平方米。
求中望cad2008i授权码 zwcad 产品号d207e1808f3d acis 产品号ba34d664a33d
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