SOLUTION: The radius of a bicycle wheel is 80 cm. During one trip this wheel rotated twenty-five thousand one hundred twenty-one times. To the nearest metre, how far did the bicycle travel o

Algebra ->  Length-and-distance -> SOLUTION: The radius of a bicycle wheel is 80 cm. During one trip this wheel rotated twenty-five thousand one hundred twenty-one times. To the nearest metre, how far did the bicycle travel o      Log On


   

Question 1107308: The radius of a bicycle wheel is 80 cm. During one trip this wheel rotated twenty-five thousand one hundred twenty-one times. To the nearest metre, how far did the bicycle travel on this trip? Express your answer in kilometres
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
r=80 cm, trip distance made the wheel rotate 25121 times.

One circumference is 2pi%2A80=160pi cm.


25121%2Acircumferences%2A160pi%28cm%2Fcircumference%29%2A%281%2F100%29%28m%2Fcm%29
(the rendering is not right. The pi is NOT supposed to look like an exponent.)

%2825121%2A160pi%2F100%29%2AMETERS
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Answer by ikleyn(52776) About Me  (Show Source):
You can put this solution on YOUR website!
.
Never saw so big bicycle wheels on a road.

I think, you may see it only in a circus . . .