# Geometry

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• Geometry - ,

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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