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In this article we'll emphasize on two triangles and provide a vectorialproof of the fact that these triangles have the same orthocenter. This proofwill further allow us to develop a vectorial proof of the Stevanovic's theoremrelative to the orthocenter of the Fuhrmann's triangle.

Two Triangles with the Same Orthocenter and a Vectorial Proof of Stevanovic's Theorem