# Surface area of a regular tetrahedron

## Description

The tetrahedron is one kind of pyramid, which is a polyhedron with a flat polygon base and triangular faces connecting the base to a common point. A regular tetrahedron is one in which all four faces are equilateral triangles The surface area of the regular tetrahedron can be computed by the edge length

Related formulas## Variables

A | Surface area (m^{2}) |

a | Edge length (m) |