| . “Spherical Geometry-Definitions.” H2G2. BBC. 23 April 2008. . “Menelaus of Alexandria.” Technology Museum of the Thessaloniki. 23 April 2008. . O'Connor, JJ, and Robertson, EF. “Non-Euclidean Geometry.” The MacTutor History of Mathematics archive. Feb. 1996. University of St. Andrews, Scotland. 23 April 2008 . “Menelaus’ Theorem.” 24 April 2008 . Veljan, Darko. “The 2500-Year-Old Pythagorean Theorem.” Mathematics Magazine. 73.4 (Oct., 2000): 259-72. Jstor. 24 April 2008 * B* ph ÿ hö Þ j hö Þ UhDg h“u ]�hDg h–]Î PJ ]�nHtH / 4 5 < |
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