Pi+ProjectZO

​ **ZO's Pi Project ​ **

Welcome to the Pi Project of the amazing ZO! Read and learn. 
 * **What is Pi?**

Pi is the number multiplied by the diameter of a circle to find the circunfrence of a circle. Also: 3.14...


 * **What language does Pi come from?**

Pi comes from the language of Greek.
 * **What kind of number (decimal) is Pi?**

Pi is a non-repeating, non-terminating decimal, or called an 'irrational number'.

-One formula, to find the circumfrence of a circle, is 2r, r being the radius.
 * **What formulas use Pi?**

-Another formula to find the circumfrence is d, diameter, times Pi. -When you multiply the diameter of a circle by 3.14, or Pi, you get the circumfrence. -Another formula is finding the area of a circle. You do that by doing this: A = pi*r^2 or, A=Pi r squared With Rap: [|Pi song] [|Pi Pi Mathematical Pi] [|Ask Dr. Math] [|Wikipedia Pi] Pi is a very, very old number. It existed long ago, but the Egyptians and Babylonians didn't know how to calculate it as well as we do now. They figured that it was a little bit bigger than the number 3. The Babylonians had an approximation of 3 1/8, and the Egyptians had a worse approximation of 4*(8/9)^2, which is slightly less accurate and much harder to work with. The modern symbol for pi was first used in 1706 by William Jones.
 * Without Rap: [|Pi song]**
 * Here are two links that helped me with this page:**
 * Here is a brief history of Pi:**

So far, Pi has been calculated to //1.2400,000,000,000// //​//digits! (1.2400,000,000,000=One and twenty-four hundredths trillon) See if you can find your birthday on this [|cool website]! Measure the circumfrence and diameter of a circle. Divide the circumfrence by the diameter. Your answer should be Pi. Pi never ends. It goes on and on into infinite numbers.** :) **
 * Here is how to calculate Pi:**
 * One odd fact about Pi is:**