Well, we all know that pizza is circular in shape having some height and therefore thus making cylindrical shape.
And the Volume of Cylinder is Πr2h where 'r' is the radius of circular part and 'h' is the height of cylinder.
Now coming back to pizza, let 'z' be the radius of circular part of pizza and 'a' be the height of pizza and we will write Π as 'pi'.
Thus we get Volume = pi * z * z * a = pizza
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