Regular Tetrahedron: Surface Area & Volume

The regular tetrahedon is the simplest of the Platonic solids, otherwise known as regular polyhedra. In this video, show how to find the surface area and volume of a regular tetrahedron in terms of its edge length. The formulas $$V=\frac{s^3}{6\sqrt{2}} \text{ and } S = \sqrt{3} s^2$$ are surprisingly simple!