11.5 (r = d/2)
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diameter = 7.32 Formula: Circumference = 2 * pi * radius 23 = 2 * (3.1416) * radius 23 = 6.2832 * radius 23/6.2832 = 6.2832/6.2632 * radius 3.66 = radius diameter = 2 * radius diameter = 2 * 3.66 diameter = 7.32
The diameter of a circle is twice its radius
The radius of a circle is half the diameter so if the radius of a circle is r, then the diameter is 2r.
The diameter of a circle is twice its radius
The radius of a circle is always half of the diameter. If the diameter is 85.4, the radius is 42.7.