做一个长1.4m,宽5m,深0.8m的无盖鱼缸.1.要用玻璃多少平方米?2.这个鱼缸所占空间是多少立方米?

问题描述:

做一个长1.4m,宽5m,深0.8m的无盖鱼缸.1.要用玻璃多少平方米?2.这个鱼缸所占空间是多少立方米?

(1.4+5)x2x0.8+1.4x5=17.24
1.4x5x0.8=5.6
宽5m?