Question

Hilary is ordering a large circular pizza from her local pizza shop. She asks about the size of the pizza and is given three different values: 14 inches, 44 inches and 7 inches.

Hilary knows three measurements that are used to describe circles: radius, diameter and circumference. Which value best matches each measurement? Explain your reasoning.

Answer 1

7 in is the radius
14 in is the diameter
44 in is the circumference
7 has to be the radius because the radius is half the diameter. this in turn means that the diameter must be 14. and the circumference is 44 because the circumference is the perimeter of the circle. (it has to be the largest number)

Answer 2

7 is the radius

14 is the diameter

44 is the circumference

Explanation:

7 is the smallest number of them all so it's the radius. The diameter is double of a radius so 14 is the diameter and finally 44 is the circumference :)