## Surface Area Of Frustum Of A Cone

A frustum is the portion of a solid (normally a cone or pyramid) that lies between two parallel planes cutting it. Because the point at the top is removed, there is no vertex in the Frustum as opposed to one vertex.

## $$\mathrm{\Pi s}[b+r]+\Pi {r}^{2}+\Pi {b}^{2}$$

r = top radius, b = base radius, h = height, s = slant height

ENTER THE VARIABLES TO BE USED IN THE FORMULA