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26-01-2017
Mathematics

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Express the length of the perimeter of a circle in terms of the area of the circle.

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26-01-2017

the perimiter is the circumference
c=2pir

are=2pir^2

so

c=2pir
solve for r
c/(2pi)=r
sub tat for r
area=[tex]pi( \frac{c}{2pi} )[/tex]
where c=perimiter of the circle

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