calculate the circumference of a circle if it's radius is 21 cm
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Answered by
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Step-by-step explanation:
2×3.14×21
=131.88cm²
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Answered by
0
Answer:
131.88 cm
Step-by-step explanation:
Circumference
= 2 π r
=2 × 3.14 × 21
= 6.28 × 21
=131.88 cm
plz mark brainliest
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