This formula provides the volume of a right pyramid of a base area (A) and height (h). The base area (A) is defined by a polygon of (n) equal sides within a circle of radius (r).
This formula is based on the standard volume of a pyramid which is `1/3` * baseArea * height. It is also based on the area formula for a polygon that is inscribed within a circle `1/2 * n * r * sin(2 pi/n)`. The fractions of `1/3` and `1/2` have been combined into `1/6`.