Question

radius of a circle is 14.7 metre how many Revolution will it make to cover a distance of 4.62 km​

Answer 1

Answer: ≈ 50 revolutions.

Step-by-step explanation:

Radius = 14.7 m

Distance covered = 4.62 km = 4.62 x 10³ m

Perimeter of the circle = 2πR

= (2 x 3.14 x 14.7) m = 92.316 m

Clearly, the perimeter will represent the distance covered by the circle in one revolution.

=> It covers 92.316 m in 1 revolution.

Therefore, it will cover 1 m in ( 1/92.16) revolution.

=> It would have covered 4.62 x 10³ m in {1/92.16} • 4.62 x 10³ revolutions viz equals to ≈ 50 revolutions.

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