圆柱体积=底面积乘高=3.14乘(3/2)乘(3/2)乘4=28.26
圆锥体积=底面积乘高乘1/3=3.14乘(3/2)乘(3/2)乘(3/4)乘4乘1/3=7.065
那么陀螺体积=圆柱体积+圆锥体积=28.26+7.065=35.325