Question #bb3d8
1 Answer
Explanation:
Volume of this solid is a sum of two volumes - the one of a cone and that of a cylinder.
Since we know the radius of both, all we need is the height of each -
We do not know these heights but we know two important equations they participate in:
(1)
(2)
where
From the two equations above we can easily find
substituting (1) into (2), we get
Knowing heights and radiuses of a cone and a cylinder, we can calculate each volume.
The volume of a cone is
The volume of a cylinder is
Total volume of a solid is