katiemayfield4226 katiemayfield4226

05-05-2017
Mathematics

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What is the circumference of the circle in terms of pi? The radius is 30 and the choices are 900, 90, 60 and 30 im so confused so could someone please explain what i did wrong?

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Аноним Аноним

05-05-2017

Circumferencec is defined by 2pi*r, where r is the radius. Therefore, we can do the equation:

C=2*pi*30
C=60*pi
Normally, you would multilply your number and pi but since we're told to leave it in terms of pi, the answer is 60.

:)

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