SOLUTION: Find the exact ratio of the equator to the distance around the Earth at latitude 45� north.

Question 1128673: Find the exact ratio of the equator to the distance around the Earth at latitude 45� north.
Answer by ikleyn(52857) (Show Source): You can put this solution on YOUR website!
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This ratio, OBVIOUSLY, is the same as the ratio of the corresponding radii, which, in turn is equal to  


    cos(45�) = .                      ANSWER

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