arielcainess arielcainess

12-03-2018
Mathematics

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find the circumference of a circle with an area of 530.93

find the circumference of a circle with an area of 53093 class=

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choixongdong choixongdong

12-03-2018

A = π r^2
r^2 = A/π
r^2 = 530.93 / 3.14
r^2 = 169.08
r = 13

C = 2 π r
C = 2 (3.14)(13)
C = 81.64

answer
81.64 m

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