# Pi vs. Tau

### by Aisha Khan, Surbhi Kumar, Claire Jordan, Aisha Espinosa

## What is Tau?

Tau is exactly twice pi. It was first discovered in Egypt (and Babylon), and was used to build the pyramids. Also, it is the 19th letter of the Greek Alphabet.

## Why is it better to use?

Pi is confusing to use in equations. Tau makes solving equations that currently use Pi easier, like the formula for the circumference of a circle. It uses twice pi, which is exactly Tau. Also, memorization of the different formulas would not be necessary.

With Tau, things are much simpler. Join the Tau movement today!