SOLUTION: How much more pizza is comtained in a pizza with a radius 12in than in one with 9in

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Question 546549: How much more pizza is comtained in a pizza with a radius 12in than in one with 9in
Answer by mananth(12270) About Me  (Show Source):
You can put this solution on YOUR website!
by area pi*(12^2-8^2)
pi*144-81)
pi*63
198in^2 more