The circumference of a circle with a radius of four is: 25.13
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2, because the radius is half of the circumference
radius of a circle = 4 inchesFormulas:Circumference of a circle = 2π radiusradius =circumference/2π=8π/2π=8/2= 4
A circle with a radius of 4 inches has a circumference of 25.13 inches.
A circle with a radius of 4m has a circumference of 25.133m.
The circumference of a circle that has a radius of 3.2cm is: 20.1cm