The circumference of a circle with a radius of 11 is about 69.12
The general formula is circumference = (2 x radius) x pi. Therefore, in this instance, the answer is 2 x 11 x pi = about 69.12.
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The radius of a circle with a circumference of 110 is: 17.507
The circumference of a circle with a radius of 6.7 is: 42.097
The circumference of circle with radius 12cm is 75.4cm
The circumference of a circle if its radius is 3 is about 18.85
Radius of a circle = circumference/2*pi