It is a formula to find out the area of a circle
It is the formula to find the area of a circle!
Its also the answer to this joke:
Q: Why doesn't the geometry bakery have any round boxes
A: Because the Pi R Squared
Q: Why doesn't the geometry bakery have any round boxes
A: Because the Pi R Squared
Pie has a value 3.14 and r is the radius of the circle...and pie r square is the area of the circle...