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Using \(\pi=\frac{22}{7}\) how many revolutions will a wheel of radius (35) cm make while moving (220) cm?

Answer and explanation

Correct answer: 1

The distance covered in one complete revolution equals the circumference of the wheel. Its circumference is \(2\pi r=2\times\frac{22}{7}\times35=220\) cm. Since the given distance is also 220 cm, the number of revolutions is \(\frac{220}{220}=1\). In contrast, \(\frac{1}{2}\) revolution would cover only 110 cm. Exam tip: divide the total distance by the wheel's circumference to find the number of revolutions.

Related tags

Trigonometric FunctionsAnglesWheel RevolutionCircumferencePiMathematicsClass 12 Mcq

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