This video demonstrates an example of how to find the volume of a cylinder using the circle formula.

This video demonstrates how to find the volume of circular shapes such as spheres and cones, which both require the use of the circle formula. It also explains how the revolution of one shape can create another three dimensional shape with a circular quality.

Larry and Amelia consult the Einstein bobbleheads for help on finding the secret at the heart of the Pharoah's tomb. Amelia realizes that the answer is Pi, and the Einsteins state the value of Pi since Larry doesn't seem to be familiar with the constant. Important to note is that Pi is not exactly the value stated by the Einsteins; it is approximately that value.

In this clip, two young men compare the sizes of three hypothetical candy bars to decide which to buy.

Finch, as a substitute teacher, draws a circle on the board along with the symbol, Pi, and asks the class what it means. When a student asks what Pi is good for and when one would use it, he gives a compelling answer.