SOLUTION: The radius of a circular cycle track 42 meters, how many kilometer will a cyclist cover if he rides around the track 10 times.
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Question 937400: The radius of a circular cycle track 42 meters, how many kilometer will a cyclist cover if he rides around the track 10 times.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
c = 2*pi*r
c = 2*3.1415*42
10c = 10*2*3.1415*42
10c = 2638.86 m
10c = 2638.86 m * (1/1000 m/km)
10c = 2.63886 km
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