pi+project+gn

What kind of number is pi? ** **What is pi used for?** **What language did pi come from?** ​ **What formulas use π?** **Cool things about pi**
 * Pi**
 * Pi is a nonrepeating nonteriminating decimal.
 * Pi is used times the diameter of a circle which equals the circumference.
 * Pi came from the Greek alphabet.
 * **C=2πr**
 * **C=πd**
 * **A=πr²**
 * **​**Did you know pi has so many numbers in it that you can [|find your birthday in pi].

**Links** [|info about pi] Listen to this [|sweet song]or this [|one] [|Ask Dr. Math]