Question

一只长方体鱼缸,长50厘米宽24厘米高40厘米,如果装有42升的水,水面距上口有多少厘米?

Answer 1

V=5*2.4*4=48(dm)3=48L

V'=48-42=6L

h=V'/S=6/(5*2.4)=0.5dm=5cm