हिंदी

Find the circumferences of a circle whose radius is 7 cm.

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प्रश्न

Find the circumferences of a circle whose radius is 7 cm.

योग
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उत्तर

Radius of the circle, r = 7 cm
∴ Circumference of the circle = 

\[2\pi r = 2\pi \times 7 = 2 \times \frac{22}{7} \times 7 = 44 cm\]
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2016-2017 (March) B
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