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The circumference of a circle with an 8 cm radius is: 50.27 cm
The circumference of a circle with a radius of 8 meters is: 50.27 meters (r x 2 x Pi = circumference).
radius of a circle = 4 inchesFormulas:Circumference of a circle = 2π radiusradius =circumference/2π=8π/2π=8/2= 4
The circumference of a circle with a radius of four is: 25.13
A circle with a radius of 4m has a circumference of 25.133m.