Mimas' mean (average) radius is listed as 198.2 km. That would
give it an average circumference of 1,245.3 km (773.8 miles).
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Circumference = 2pi*r Circumference = 86pi
circumference = 24.5
circumference of the tire.
Circumference = 12Diameter = Circumference/piRadius = Diameter/2 = circumference/(2 pi) = 1.9099 (rounded)
You divide circumference / (2 x pi).You divide circumference / (2 x pi).You divide circumference / (2 x pi).You divide circumference / (2 x pi).