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Concyclic Centroids and the Anti-Fuhrmann Triangle

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arxiv 2312.02024 v1 pith:R7GZCHRY submitted 2023-12-04 math.HO math.MG

classification math.HOmath.MG
keywords centroidstriangleconcyclictrianglesabcpanti-fuhrmannapplicationarticle
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abstract

In this article we present a remarkable concyclicity of four centroids related to the orthocenters of the triangles $ABC,$ $BPC,$ $CPA,$ and $PAB$ of a quadrangle $ABCP$. Furthermore, we establish a result about orthologic triangles inscribed in a rectangular hyperbola. We present an application of the concyclic centroids theorem when $P$ corresponds to the incenter $I$ of $ABC$. This specialization leads to the discovery of a novel triangle intimately connected to the Fuhrmann triangle.

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