The idea of this book came up when writing our previous book, The Geometry of Homological Triangles (2012). We try to graft on the central theme -the orthology of triangles-, many results from the elementary geometry. In particular, we approach the connection between the orthological and homological triangles; also, we review the "S" triangles, highlighted for the first time by the great Romanian mathematician Traian Lalescu.
THE GEOMETRY OF THE ORTHOLOGICAL TRIANGLES
₹4440
THE GEOMETRY OF THE ORTHOLOGICAL TRIANGLES
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