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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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re: hint

Comment 2 of 2 |

(In reply to hint by Charlie)

6371 = Earth Radius in km.

3959 = Earth Radius in miles.

I still don't get the rest of it unfortunately. If it was just C = 7918 or 12742 pi, then it would be the circumference of the Earth.

Edited on March 9, 2013, 2:05 pm

Posted by broll on 2013-03-09 14:02:13

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