Radius of circle: 8/2 = 4 units
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The diameter is double the radius, and the radius is 1/2 of the diameter.If the radius is 8 cm, then the diameter is 16 cm.
Radius = Diameter / 2 In this case, diameter = 8 cm so radius = 4 cm
8 inches. Radius is ½ diameter.
Diameter = 2 times radius = 8
If the radius is 8 feet then the diameter will be 16 feet.