dmiabrock dmiabrock

21-04-2017
Mathematics

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If a circle has a circumference of c , what is the area of the circle in terms of c ?

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Aishani Aishani

23-04-2017

C = 2(pi)r
r = C/2 pi
A = pi r^2
= pi (c/2 pi)^2
= pi c^2/4 pi^2
= c^2/4 pi

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