A wheel of radius $\frac{4}{π}$ cm touches a flat surface. What is the distance covered by the wheel in one complete rotation?

4 cm

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8 cm

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2 cm

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6 cm

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Solution

The correct option is B 8 cm

Given, $r = \frac{4}{π} c m$
Distance covered by the wheel in one complete rotation = Circumference = $2 π r = 2 \times π \times \frac{4}{π} = 8 c m$

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