How much more crust does a large pizza with a diameter of 12 inches have than a small pizza with an 8-inch diameter?

3 answers

circumference (the crust)= 3.14(pie)*radius^2

C=3.14*12^2 (12 inch)
C=3.14*8^2 (8 inch)

Then subtract the answer of the 8 inch diameter pizza from the answer of the 12 inch diameter pizza.
circumference (the crust)= 3.14(pie)*radius^2

C=3.14*12^2 (12 inch) = 452.16
C=3.14*8^2 (8 inch)=200.96

452.16 minus 200.96 = 251.2 in in diameter
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