Posted by **Tim** on Wednesday, February 20, 2013 at 7:26pm.

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

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

- Math -
**JJ**, Wednesday, February 20, 2013 at 7:28pm
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.

- Math -
**Tim**, Wednesday, February 20, 2013 at 7:33pm
2.5?

- Math -
**JJ**, Wednesday, February 20, 2013 at 7:35pm
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.

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