Question

1. The diameter of a circle is 8. what is the radius?

Answer 1

Radius = 4

Explanation:

r = d/2

r = 8/2

r = 4

Answer 2

4

Explanation:

The diameter of a circle is the length of a straight line from two opposite points on the circle. The radius is the length of a straight line from the middle to a point on the circle. This means that the diameter must be double the radius. So to find the radius, divide the diameter by 2. Since 8/2=4, the radius is 4.