Posted by Jon on .
How much more crust does a large pizza with a diameter of 12 inches have than a small pizza with an 8inch diameter?

Math 
Anonymous,
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. 
Math 
Becky,
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