SOLUTION: 2. As we double the diameter of a circular pizza and then triple the diameter of the pizza, how much more pizza will there be to eat? Explain your reasoning.

Algebra ->  Surface-area -> SOLUTION: 2. As we double the diameter of a circular pizza and then triple the diameter of the pizza, how much more pizza will there be to eat? Explain your reasoning.       Log On


   

Question 245124: 2. As we double the diameter of a circular pizza and then triple the diameter of the pizza, how much more pizza will there be to eat? Explain your reasoning.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Area+=+pi%2Ar%5E2
If you double the diameter (or the radius, same thing), it's
Area+=+pi%2A%282r%29%5E2 which is 4 times.
If you triple it, it's 9 times.
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The area is a function of the square of the radius (and diameter).