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Re: Euclidean, Hyperbolic and Elliptic Geometry
Posted:
Mar 3, 2009 1:18 AM


There are no universal postulates. Parallel lines are different in hyperbolic and also euclidean, and also a hyperbolic triangle can have the sum of degrees as 210. As for ratio between euclidean sines and hyperbolic sines, i truly have no ides.



