Half the diameter of a circle is called its radius.
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The diameter of a circle is twice the radius. A radius is half of a diameter.
The radius of a circle is half of its diameter. Therefore, if the diameter of the circle is 60 inches, the radius would be half of 60, which is 30 inches. The formula to find the radius from the diameter is: radius = diameter / 2.
5, because the radius is half the diameter and half of 10 is 5
The radius of a circle is one-half of the circle's diameter. So if the radius is 12 inches, the diameter is 24 inches.
A radius is half of the diameter of a circle or a sphere. Scroll down to related links and look at "Diameter - Wikipedia" or "Radius - Wikipedia"