Question

亮亮家要给一个长0.75m,宽0.5m,6m的简易衣柜换布罩（没有底面）.至少需要用布多少平方米?

Answer 1

0.75*0.5*2=0.75 0.75*1.6*2=2.4 1.6*0.5*2=1.6 1.6+0.75+2.4=4.75