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3 years ago

22

Mathematics

1 answer:

astra-53 [7]3 years ago

7 0

Answer:

$c = 132$

Step-by-step explanation:

$c = 2\pi \: r \\ = 2 \times \frac{22}{7} \times 21 \\ = 132cm$

hope this helps

brainliest appreciated

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