圆柱体积是:3.14×（1÷2）²×5=3.14×0.5²×5=3.14×0.25×5=0.785×5=3.925(立方米)分析:圆柱体积公式→Ⅴ=Sh
底面积=3.14*0.5*0.5=0.785圆柱体积=0.785*5=3.925
