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September 20, 2014

September 20, 2014

Posted by **Sholanda** on Wednesday, May 16, 2012 at 12:34am.

- Geometry -
**Reiny**, Wednesday, May 16, 2012 at 7:42amradius 1 = 1

radius 2 = 1+3 = 4

radius 3 = 4+1 = 5

radius 4 = 5+2 = 7

radius 5 = 7+.75 = 7.75

circumference 1 = 2π(1) = 2π

circumference 5 = 2π(7.75) = 15.5π

difference in circumference = 15.5π - 2π= 13.5π

= appr. 48.7 inches

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