# Cube and cube root

**Cube and cube root**, terms in geometry. A cube is a closed solid figure with 6 equal square faces; adjoining faces are at right angles to each other. If the edge of a cube is of length *a*, then its volume is *a*^{3}. Conversely, if we start with a cube *a*^{3}, then *a* is called its *cube root*.

*See also:* Geometry.

## Additional topics

21st Century Webster's Family Encyclopedia21st Century Webster's Family Encyclopedia - Cretinism to Davis, David