By what approximate factor is a 12 inch pizza larger in area than a 10 inch pizza?
A) 1.2
B) 1.1
C) 1.4
D) 1.6

Question

Quizplus · Accepted Answer

To find the approximate factor by which the area of a 12 inch pizza is larger than a 10 inch pizza, we need to calculate the ratio of their areas.

Area of 10 inch pizza = pi x (10/2)^2 = 78.54 square inches
Area of 12 inch pizza = pi x (12/2)^2 = 113.10 square inches

Ratio of areas = (Area of 12 inch pizza)/(Area of 10 inch pizza) = 113.10/78.54 = 1.44

So, the area of a 12 inch pizza is approximately 1.4 times larger than a 10 inch pizza. Therefore, the best choice is C.

By What Approximate Factor Is a 12 Inch Pizza Larger