If the diameter of a circle is 5 in., what is the radius?

Question

What is the relationship of the diameter of a circle to radius?

Answer 1

The diameter is the distance across the circle and the radius is the distance from the center of the circle to the edge of the circle.

I will be happy to check your answer.

Answer 2

2.5?

Answer 3

Right. The radius is 2.5

So you can see that the diameter is double the radius.

or you can say the radius is 1/2 the diameter.