Pi is important to the study of math because is can be used in many ways. For example, you can use it to find the circumference of a circle and the volume of a sphere. I am not really sure how people calculated that pi works for that, but it plays a big part in our math history.
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The number for pi is: 3.1415926535897932384626433832795
several equations' answers come out to 3.14 and so on, thats pi
who invented, or came up with "pi" in math? How did they come up with the estimation of 3.14?
Math Grade 9
: ; Euler's identity http://en.wikipedia.org/wiki/Leonhard_Euler some pretty hardcore math, but is important in alot of different ways.