If area of circle is 616 cm2, find its circumference
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Answer:
88cm
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Answer:
area of circle =616
πr^2=616
r^2=616×7/22
r^2=28×7
r^2=216
r=14cm
circumference of circle=2πr
=2×22/7×14
=2×22×2
=88cm
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