How do I find the area of a circle by using the PI formula?

Well why are you looking for the circle of a pie, if you already have a pie then you already have the circle. I say this because pie's are shaped in circles, so you dont have to try and find the circle of the pie because you already have the pie so you already have the circle. Try and be more smart next time.

$Area\; of \;a \;circle = \pi r^2$

Well why are you looking for the circle of a pie, if you already have a pie then you already have the circle. I say this because pie's are shaped in circles, so you dont have to try and find the circle of the pie because you already have the pie so you already have the circle. Try and be more smart next time.

No the area of the pie is filled with whipped cream or ice cream and the inside is filled with warmed, melted fruits...STUPID