## Geometry and Trigonometry## Measurements and Transformations |

## What are lateral surface areas? |

In many mathematical texts, the *lateral surface area* (L.A.) is given along with—or instead of—the surface area (S.A.). This type of area is the surface area of a three-dimensional figure, excluding the area of any bases. In other words, the lateral surfaces are the side faces (or surfaces) of a solid, or any face or surface that is not a base (or bottom of a figure).