Question

What is the radius of a circle with a diameter of 9 meters? Enter as a decimal number.

Answer 1

4.5 meters

Explanation:

radius is half of the diameter

Answer 2

4.5 m

Explanation:

The diameter is twice the radius

d = 2r

Divide each side by 2

d/2 = r

9/2 = r

4.5 = r