发布时间:2025-01-24 10:54:19
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。
因采光问题想在砌好的墙上开一个4080的窗户装修公司要加钱说开窗200窗户200这种收费是合理的吗
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