which is a better deal? A circular pizza with a 12 inch diameter for $18, or a square 11x11 inch pizza for $16?

Question

I need help solving this problem.

Answer 1

Area of a circle formula is A=1/2 × π × r²  which is A= 1/2  × π  × 6² => 113.1 total area of circle

Area if square pizza is 11  ×  11= 121 area of square pizza 

Since area of square pizza is larger than the circle I would say that the square pizza is a better deal.

 

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Thanks,

Alla