TRYNlit TRYNlit

30-05-2018
Mathematics

contestada

estimate the circumference of a circle with a radius of 9cm

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Emma566 Emma566

07-06-2018

Circumference = 2 x 3.142 x r
9 = 6.284 x r
9 ÷ 6.284 = r
r = 1.43 cm

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