Volume and Surface Area of Composite Solids
Concept

Composite Solid

A solid that is made up of more than one solid is called a composite solid. The individual solids can be combined either by adding or subtracting them from one another. For instance, a hemisphere can be combined with a cone to make something that resembles a snow cone, or it could be used to dig a bowl shape out of a cylinder.
Snow cone and cylinder with a hollow in the shape of a hemisphere.

The volume of a composite solid is either the sum or the difference between the volumes of the individual solids, whichever is applicable. The surface area of a composite solid is the sum of the faces that enclose the solid.

Exercises