Acres of Pizzas (pizzas are round)

Question

Acres of Pizzas (pizzas are round)

It is estimated that Americans eat 100 acres worth of pizza a day. Assume that they are large pizzas with a diameter of 14 inches.
Find the number of square inches in a large pizza.
An acre has 43,560 square feet and a square foot has 144 square inches. How many square inches are there in 100 acres?
How many large pizzas do Americans eat each day?
If a large pizza has eight slices, estimate how many slices per second American eat.
What is another real world situation in which similar calculations are used?

Answer 1

100 *43560*144= 627,264,000  square inches in `100 acre

one pizza = pi*(dia/2)^2= 49

total pizzas = 12801306 per day

12801306*8/24/60/50= est 1200 pizza/sec

hamburgers eaten per day