find the circumference of a circle if its area is 144πcm
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Area of circle =πr^2
then first find the radius of circle
144π=πr^2
144=r^2
r=12
Now, circumference of circle =2πr =2*22/7*12=75.428
then first find the radius of circle
144π=πr^2
144=r^2
r=12
Now, circumference of circle =2πr =2*22/7*12=75.428
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