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January 30, 2015

January 30, 2015

Posted by **Pam** on Tuesday, January 22, 2013 at 10:28pm.

- Math -
**Reiny**, Tuesday, January 22, 2013 at 10:38pmWhat you are doing here is comparing the circumference , the distance which is rolled

bottom of cup: radius = 5 cm, so the circumference is

2πr = 10π

top of cup: radius = 7 cm, so the circumference is

14π or appr 43.96 cm

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