Find the circumference of circle whose radius is 21 cm
Answers
Answered by
10
Answer:
132
Step-by-step explanation:
2×22/7×21
=132
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Answered by
8
Step-by-step explanation:
radius of a circle (r)=21 cm
circumference of a circle=2/pie
=2×22/7×21
=2×22×21
=2×66
=132cm
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