The formula for the circumference (C) of a circle is C = 2πr.
If the circumference is 16π then 16π = 2πr : r = 16π/2π = 8
The radius is 8.
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radius = 16/(2*pi)
A circle with a radius of 16 inches has a circumference of 100.53 inches.
About 100.53 feet.
The radius is 8 units.
2 inch radius = 12 9/16" circumference & an area of 12.56637 sq. inches.