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Published online by Cambridge University Press: 20 January 2009
Menelaus's theorem is
If a transversal DEF cut the sides of triangle ABC at the points D B F, then
and conversely.
* Essai sur la théorie da transversales, p. 68 (1806).Google Scholar
* With regard to the naming of the triangles ABC OCB COA BAO see Proceedings of the Edinburgh Mathematical Society, Vol. I., p. 62.Google Scholar