Question

This circle has a diameter of 40 centimeters. What is the radius?

Answer 1

The distance between the center of the circle to its circumference is the radius. The diameter is always double the radius. Hence, the formula is derived by dividing the diameter by 2.

40/2 = 20cm.

Answer 2

Answer: 20 centimeters

Explanation:

The radius is half the diameter so then the radius is 20 centimeters.