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OpenStudy (anonymous):
A circle has a radius of 8 cm. A good estimate for the circumference of the circle is 24 cm.True or False
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OpenStudy (anonymous):
circumference is 2* pi *r. if you substitute that will be 2* 8 * pi = 16 pi. pi is around 3. 16 x 3 is around 48 not 24
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