Surface Area and Volume

The surface area of a solid refers to the area of the surface, which is actually two-dimensional. A solid’s surface is often composed of standard shapes; to find the surface, you have to find the sum of the areas of these shapes.

Definition 1: The lateral area of a solid figure is the sum of the areas of its lateral faces.

Definition 2: The surface area of a solid figure is the sum of the areas of all its surfaces.

The amount of water a fish tank can hold, the amount of grain a silo can hold, or the amount of concrete needed for a patio floor are all examples of volume.

Volume measures the space contained within a solid. Volume is measured in cubic units.

Find out more about surface area and volume by reading the explanation below.

Surface Area and Volume