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The radius is the distance from the center of the circle to its edge. The diameter is a straight line passing from one point on the edge to another which passes through the center. Draw these and you will see that the diameter is really just two aligned radii, so the radius is always exactly half of the diameter.

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Q: What is the radius of a circle if the diameter is 8 inches?
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Related questions

What is the diameter of circle if the radius is 4 inches?

8 inches; the diameter of a circle is twice its radius.


What would be the radius of a circle with a diameter of 8 inches?

Radius is one-half of the diameter of a circle. Therefore, the radius of an eight-inch diameter circle is four inches. The diameter of a circle is a straight line joining a point on the circumference through the centre to the 'opposite' point on the circumference.


If the diameter of a circle is 8 inches what is the circles radius?

The radius will be half the diameter of 8 inches which is 4 inches


What is the radius of a circle if the diameter is 16inches?

8 inches. Radius is ½ diameter.


What would be radius of a circle with a diameter of 8 inches?

Radius = 1/2 diameter. So, if the diameter is 8", then radius of the circle is 4".


What is the radius of a circle if the diameter is 16 inches?

8". Radius is half the diameter.8"


What is the diameter of a circle that has a radius of 4 inches?

The diameter is double the radius, so 8 inches.


If the diameter of the circle is 16 inches what is the radius in inches?

Radius of circle: 16/2 = 8 inches


What would be the raduis of a circle with a diameter of 8 inches?

A circle with a diameter of 8 inches has a radius (not raduis) of 4 inches.


What would be the redius of a circle with a diameter of 8 inches?

The radius is one half the diameter so if the diameter is 8 inches then the radius is 4 inches.


What would the radius of a circle with a diameter of 8 in.?

Radius of circle: 8/2 = 4 inches


What would be the radius of the circle with diameter of 8 inches?

radius = 1/2 diameter = 4 inches