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True Geometry (Posted on 2013-03-07)

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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hint

| Comment 1 of 2

Google 6371

Posted by Charlie on 2013-03-09 12:09:19

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