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Circumference of a Circle

If the circum...

Question

If the circumference of a circle be $8.8 m$ then its radius is equal to -

1.60 m

(approx)

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1.61 m

(approx)

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1.40 m

(approx)

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None of these

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Solution

The correct option is A $1.40 m$ (approx)
Circumference of a circle, $C = 2 π r$
or $r = \frac{C}{2 π}$
$= \frac{8.8 \times 7}{2 \times 22}$ $= 1.4 m$

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