SOLUTION: The circumference of the exceeds it's radius by 111cm, find radius of the circle

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Question 1063050: The circumference of the exceeds it's radius by 111cm, find radius of the circle
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The circumference of the ?? circle? exceeds it's [sic] radius by 111cm, find radius of the circle.
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C = 2pi*r = r + 111
2pi*r - r = 111
r*(2pi - 1) = 111
r = 111/(2pi - 1)
r =~ 21.01 cm
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it's = it is