find the radius and the circumference of a circle whose area is 144pie cm2
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area of circle= π r2 = 144π
r2=144
r= 12 cm....
so radius is 12 cm.....
so circumference= 2π r= 2*π*12= 24π cm....
r2=144
r= 12 cm....
so radius is 12 cm.....
so circumference= 2π r= 2*π*12= 24π cm....
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refer to the above pic.
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