转换:
a=500mm=50cm=5dm=0.5m
b=300mm=30cm=3dm=0.3m
h=1000mm=100cm=10dm=1m
长度=47m=47m
式子:
[(a+b)*h/2]*长度
=[(0.5+0.3)*1/2]*47
=[0.8*0.5]*47
=0.4*47
=18.8(立方米)
转换:
a=500mm=50cm=5dm=0.5m
b=300mm=30cm=3dm=0.3m
h=1000mm=100cm=10dm=1m
长度=47m=47m
式子:
[(a+b)*h/2]*长度
=[(0.5+0.3)*1/2]*47
=[0.8*0.5]*47
=0.4*47
=18.8(立方米)