高0.88米直径0.55米圆柱体,等于0.208967立方米。3.14×0.275×0.275×0.88=0.208967
根据题意:圆柱体体积=3.14x(0.55÷2)x(0.55÷2)x0.88=0.21立方米,即圆柱体等于0.21立方米。