# Second Pizza Theorem

## Puzzle

Q: What is the volume of a pizza whose radius is $z$ and whose thickness is $a$?
A: From Volume of Cylinder: $\text {pi} z z a$.

## Historical Note

The Second Pizza Theorem has been around for many years, and it is not possible to identify its origin.

It appeared in print as long ago as $2002$, on page $2251$ of the CRC Concise Encyclopedia of Mathematics.

It has probably had multiple originators who discover it independently.