Circumference = 2 pi x radius = 6 pi = 18.85 m (rounded)
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The circumference of a circle with a radius of 3 m is: 18.85 m.
A circle with a radius of 3 inches has a circumference of 18.8 inches
use the formula pi*diameter = circumference and the formula diameter = 2*radius and combine them 2pi*radius = circumference now you have a formula that you can just plug you numbers into. if you have 3 as your radius, then this is how to find the circumference 2pi*3=circumference 6.28*3=circumference 18.84=circumference
The circumference of a circle when the radius is 3 inches is: 18.8 inches (r x 2 x Pi = circumference)
18.84955592....