The circumference of a circle equals the diameter times pi. The diameter is two times the radius.
So a circle with a radius of 6 would have a diameter of 12, and a circumference of 12pi.
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The circumference of a circle is 2*pi*r. With r = 3, the circumference is 6 pi.
6 inches because the diameter is twice the radius 3+3 = 6 circumference = pi*6 = 18.849 inches
A circle with a radius of 6 mm has a circumference of 37.7 mm
The circumference of a 6 inch diameter circle is: 18.8 inches. (diameter x Pi = circumference)
It needs to be more specific. is 6 the diameter or radius of a circle?