User:Glenn.kitchen/sandbox

π (pi) article addendum:
The story behind it's name (symbol): Take the unit circle (the circle having radius equal to 1 (one). Using the equation for the area of a circle A = πr² and using THIS equation for the unit circle, we substitute "1" for "r", and thus the equation becomes  A = π(1)²  (continue here...)

If you area to cut a piece of this circle out, you'd have a piece of π, which indeed is as well a piece of PIE.