+148 Pie is a baked good... You're probably referring to pi, the greek letter that represents the infinite and irrational number that begins as 3.14169....
Pi is used for finding the area or the circumference of a circle for the most part, or as a radian.(If you don't know what that is, don't worry about it unless you're in High School or beyond)
When used for finding the area of a circle, pi*r*r is the area (when r is the radius). The circumference (similar to a parameter) is 2*pi*r
what is pie?
