If the area of a circle is 637 cm2, find its circumference.
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Ans: 89.44 cm
22/7*r^2=637
r^2=637*7/22
r=(sq.rt)(637*7/22)
Circumference= 2*22/7*r
= 2*22/7*14.23
=89.44 cm
Answer might be slightly off, I only rounded to two decimal places, but atleast you know how to do it now. :)
22/7*r^2=637
r^2=637*7/22
r=(sq.rt)(637*7/22)
Circumference= 2*22/7*r
= 2*22/7*14.23
=89.44 cm
Answer might be slightly off, I only rounded to two decimal places, but atleast you know how to do it now. :)
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