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A Second Piece of Pizza?

Last week's statistic Piece of Pizza dealt with the record for the largest commercially available pizza, which is far smaller than the world's largest pizza.

Made by Norwood Hypermarket in Norwood, South Africa, it measured 122 2/3-feet in diameter and was made on December 8, 1990.

Its ingredients included 9920 pounds of flour, 198 pounds of salt, 3,968 pounds of cheese, and 1,984 pounds of pizza sauce.

Question 1: What is the surface areas of this world record pizza? How many times larger is that the intended world record commercially available pizza (see previous week's data)?

Question 2: Assuming surface area is the prime determiner of price, what would you predict to be the cost of this world record pizza...if it were to be sold on a regular basis?

Question 3: Determine the size of the largest pizza at your local pizzaria. Using scaling techniques based on areas, what would you expect to be the amount of ingredients (dough, sauce, cheese) used to make your local pizza?