s大正=4r²=200份,s圆=3.14r²=157份,正方体体积:4x4x4=64(立方厘米),圆柱的体积:64÷200x157=50.24(立方厘米),答:圆柱的体积是50.24立方厘米。望采纳!!!
2x2X3.14X4=50.24