Morley’s trisector theorem states that “The points of intersection of the adjacent trisectors of the angles of any triangle are the vertices of an equilateral triangle” [10]. There are many proofs of Morley’s trisector theorem [12, 16, 9, 13, 8, 20, 3, 18]. We follow the proof given by A. Letac in [15].
@article{bwmeta1.element.doi-10_1515_forma-2015-0007,
author = {Roland Coghetto},
title = {Morley's Trisector Theorem},
journal = {Formalized Mathematics},
volume = {23},
year = {2015},
pages = {75-79},
zbl = {1318.51007},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_1515_forma-2015-0007}
}
Roland Coghetto. Morley’s Trisector Theorem. Formalized Mathematics, Tome 23 (2015) pp. 75-79. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_1515_forma-2015-0007/
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