Math

A bicycle tire rim has a diameter of 24.5 inches, and the tire is 2.25 inches thick. Find the circumference of the outside of the tire.

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1. well, the diameter of the outside is d = 24.5 + 2*2.25
since there is tire all the way around.
Now you can get the circumference: pi * d

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2. D = 29
C = pi * 29
C = 91.06 inches

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