Question #0f210
2 Answers
Jun 23, 2017
Explanation:
We know
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Jun 23, 2017
Explanation:
"the circumference (C ) of a circle "=2pirthe circumference (C ) of a circle =2πr
"where r is the radius"where r is the radius
rArrC=2pir=2pi⇒C=2πr=2π
"divide both sides by "2pidivide both sides by 2π
(cancel(2pi) r)/(cancel(2pi))=cancel(2pi)^1/cancel(2pi)^1
rArrr=1