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January 26, 2015

January 26, 2015

Posted by **maihul** on Friday, November 30, 2012 at 8:19am.

- math -
**Reiny**, Friday, November 30, 2012 at 8:56amcircumference = 2πr = 400(66) cm

r = 400(66)/(2π)

= 8403.38 cm

or appr 84 m

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