装修问答

一个房间长5米,宽3米,高2.8米,现需油漆四壁和天花板,扣除门窗的面?

table> 5×3+5×2:油漆的总面积有55.5.8×2+3×2.8×2-4;
答,
=15+28+16.3(平方米).8-4.8-4.5
=59.5
=55

大馄饨小馄饨 142024-05-19