A wheel has diameter 84 cm. Find how many complete revolutions must it make to cover 3.168 km.
Mensuration
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Question

A wheel has diameter 84 cm. Find how many complete revolutions must it make to cover 3.168 km.

KnowledgeBoat · Accepted Answer

Diameter of the wheel = 84 cm Radius of the wheel = = = 42 cm Circumference of the wheel = 2πr Let the wheel make `n` revolutions. Total distance traveled by the wheel = n x Circumference of the wheel ⇒ 3.168 km = n x 264 cm ⇒ 316,800 cm = n x 264 cm ⇒ n = ⇒ n = 1200 Hence, the wheel makes 1,200 revolutions.

Mathematics

A wheel has diameter 84 cm. Find how many complete revolutions must it make to cover 3.168 km.

Mensuration

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