the radius of the wheel of a car is 21cm. find the number of revolutions made by it to cover a distance of 66km. π = 22/7
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Step-by-step explanation:
Radius =21cm
Circumference of The Tyre=2πr
= 2x22/7x21
=132 cm
Distance to be covered=924m=92400cm
Therefore number of Revolutions=92400/132
=700
Therefore 700 revolutions
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