Mario Agnello is opening a new pizza shop in town. He plans to offer a 12-inch diameter pizza and an 18-inch diameter pizza. He has set the price of a 12-inch cheese pizza at 8.00, based on the amount of ingredients needed to cover that size crust. If Mario would like to keep the pricing proportional, what should he charge for an 18-inch cheese pizza? Explain.

Question

mathstudent55 · Answer

If the linear dimensions (length, width, radius, diameter, etc.) between two figures are in a ratio of a/b, then the ratio of their areas is in a ratio of (a/b)^2.