@AThousandYoung saidHalf the tank of the delivery boy's moped.
A pizza has a thickness of a. What is the radius?
@AThousandYoung saidWe would need two of the three parameters volume, thickness and radius to determine the third...
A pizza has a thickness of a. What is the radius?
But in abstract: r=sqr(V/(2*Pi*a))
@AThousandYoung saidBut we're not getting the volume, and therefore not the area, and so don't know the radius.
Hint2
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@Ponderable saidOh, hadn't thought of that -- only that the thickness was on a different axis than the circumference and radius (the Z-plane, if one were to stupidly set the pizza upright).
OK Pi*z*z*a very clever