A wheel has a radius 28cmhow how many revolution will it make to travEl 704m
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4 is the answer......
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Step-by-step explanation:
The distance for one revolution is the circumference of the wheel, which is
circumference = 2 π r = 2 π × 28cm = 56 π cm.
The number of revolutions is then just how many times this distance goes into the total distance. We're going to need to use the same units, so the distance travelled is 70400cm, and the number of revolutions is
70400 / ( 56 π ) ≈ 400.16
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