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  • Find the circumference of the circles with the following radius: (c) 21 cm

Q. 1.     Find the circumference of the circles with the following radius: (Take\pi =\frac{22}{7} )

             (c) 21\; cm

Answers (1)

best_answer

We know that 

Circumference of circle is = 2\pi r

\Rightarrow 2\pi r = 2 \times \frac{22}{7} \times 21 = 132 \ cm

Therefore, circumference of circle is  132 cm

Posted by

Gautam harsolia

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