Hi Natalie,

Yes the formula for area A=π*r

^{2}you were told that the diameter of the cake is 8" so the radius r=8/2=4" so the area A=π(4^{2})=16π sq in. is the exact area. Approximate area =50.265 in^{2}Jim

Natalie S.

asked • 05/13/14I need help figuring out the problem. Do you use the formula of A= ∏r^{2 }and find the exact area and approximate area? Thank you for your help.

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Hi Natalie,

Yes the formula for area A=π*r^{2} you were told that the diameter of the cake is 8" so the radius r=8/2=4" so the area A=π(4^{2})=16π sq in. is the exact area. Approximate area =50.265 in^{2}

Jim

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