noeliapeguero noeliapeguero

08-08-2017
Mathematics

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Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of π.)

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choixongdong choixongdong

08-08-2017

452.16 = 3.1416 r^2
r^2 = 452.16 / 3.1416
r^2 = 143.93
r = 11.997

C = 2 (3.1416) (12) =75.38 m

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