4. Find the circumference of a circle whose diameter is 21 cm
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Answered by
2
Answer:
circumference =2πr
r=21/2 cm.
2*22/7*21/2
=66 cm
Answered by
0
Answer:
diameter = 21 cm than radius = 10.5 . circumference = 2 ✖ 7/21 ✖ 10.5=7 ans please mark me as brainlist
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