Mario Dalcín, Isotomic inscribed triangles and their residuals,

Forum Geometricorum, 3 (2003) 125--134.

Abstract:  We prove some interesting results on inscribed triangles which are isotomic. For examples, we show that the triangles formed by the centroids (respectively orthocenters) of their residuals have equal areas, and those formed by the circumcenters are congruent.

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