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True Geometry (Posted on 2013-03-07) Difficulty: 1 of 5
Identify what these formulas represent:

C = 2*π*3959*sin(r/3959)

C = 2*π*6371*sin(r/6371)

See The Solution Submitted by Charlie    
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  Subject Author Date
Some Thoughtsre: hintbroll2013-03-09 14:02:13
Hints/TipshintCharlie2013-03-09 12:09:19
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