(1) 圆锥体底面积=3*圆锥体体积/圆锥体的高
=3*圆柱体体积/(3*圆柱体高)
=圆柱体体积/圆柱体高
=圆柱体底面积
=30
(2)长方体体积=长方体底面积*长方体高
=3/2圆锥体底面积*(1/4*圆锥体高)
=3/8*圆锥体底面积*圆锥体高
=1/8圆锥体体积
所以圆锥体体积大
(3)大圆锥体体积=1/3*大圆锥体底面积*大圆锥体高
=1/3*(π*大圆锥体底面半径*大圆锥体底面半径)*(1/2小圆锥体高)
=1/6*π*小圆锥体高*[大圆锥体底面周长/(2*π)]*[大圆锥体底面周长/(2*π)]
=1/6*π*小圆锥体高*[3*小圆锥体底面周长/(2*π)]*[3*小圆锥体底面周长/(2*π)]
=9/6*小圆锥体高*π*小圆锥体底面半径*小圆锥体底面半径
=9/2*1/3*小圆锥体高*π*小圆锥体底面半径*小圆锥体底面半径
=9/2小圆锥体体积
=4.5小圆锥体体积
所以大圆锥体体积比小圆锥体体积增加了350%