1.75.36/12.56=6(cm)
2.a.(30/2)x(30/2)x3.14x60=42390(立方厘米)=42.39立方分米
b.42.39x0.85=36.0315(约等于)36.03(KG)
3.2x3.14x6=37.68 37.68/37.68=1 (cm)
1.75.36/12.56=6(cm)
2.a.(30/2)x(30/2)x3.14x60=42390(立方厘米)=42.39立方分米
b.42.39x0.85=36.0315(约等于)36.03(KG)
3.2x3.14x6=37.68 37.68/37.68=1 (cm)