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This is Pre-Algebra. Need an answer soon as possible.. Please Help ! :)

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Could a circle with a diameter of 10 cm have a circumference of about 30cm? Prove your answer!!!!!
asked Mar 4, 2013 in PRE-ALGEBRA by futai Scholar
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Circumference of circle = 2*pi*r=pi * d

circumference of circle = pi * 10 = 3.14 * 10 = 31.4 cm

So, a circle with a diameter of 10 cm can have the circumference of about 30 cm.

answered Mar 6, 2013 by Johncena Apprentice

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