Question

A circular wheel of radius 84cm covers a distance of 264m in certain number of revolutions. Find the number of revolutions.​

Answer 1

radius = 84 cm

distance = 264m= 264×100 cm

we know,

circumference = 2πr

=2×3.15×84 cm

:. Number of revolutions= 26400/527.52

=50 revolutions

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Answer 2

Step-by-step explanation:

Circumference=>2πr

=>2 x 22 x 84 =>2 x 22 x 12 = 528cm

7

264m=>26400cm

Revolution= 26400

528

= 50 revolutions will be taking place.