# What is Pi

### 3.14159265358979323846

## Facts

Pi is another way as saying representing a ratio for a circles circumference. People don't usually use all the numbers of pi the only numbers they use are 3.14. When people say its an irrational number that means it can not be represented in any fraction and that it can only be represented in 3.14. Most of you know that Pi is a number that will never end and it goes on forever also that it will not start into a pattern.

## Who used Pi and other meanings.

Pi is a letter in Greek and we use it as a math term. William was the first person two use Pi with the mathematical term. Another way too remember Pi or use Pi is the circumference of a Circe and its diameter. when people use Pi they usually multiply Pi by different numbers like the diameter if the diameter is 6 the do 6 times Pi which would be 6 times 3.14