Find the circumference of the circles with the radius 14cm : $(T a k e π = \frac{22}{7})$

88 cm

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28 mm

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21 cm

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90 cm

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Solution

The correct option is B 88 cm
Circumference $= 2 π r$
$r = 14 c m$
$= 2 π r = 2 \times \frac{22}{7} \times 14$
$= 2 \times 22 \times 2$
$= 4 \times 22$
$= 88 c m$

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