Exemplar exercise problems IX — task. Mathematics CBSE, Class 10.

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1. Is it true that the distance travelled by a circular wheel of diameter

$d \ cm$ in one revolution is

$2 \pi d \ cm$ ? Why?

2. In covering a distance

$s$ metres, a circular wheel of radius

$r$ metres makes

$\frac{s}{2 \pi r}$ revolutions. Is this statement true? Why?

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33. Exemplar exercise problems IX