Talk:Non-Euclidean geometry
This is an old revision of this page, as edited by Chrysogonus (talk | contribs) at 19:46, April 17, 2007. It may differ significantly from current revision.
In Euclidean geometry because parallel lines go on to infinity and never intersect the sum of angles in triangles is always greater than 180 degrees,
This doesn't appear to be correct. Is there a word missing? I thought in Euclidean geometry the sum of the angles in triangles is always exactly 180 degrees Chrysogonus 15:46, 17 April 2007 (EDT)