Schiffler point

The Schiffler point is one of the special points of a triangle and has the Kimberling Number X ( 21). If I is the center of the inscribed circle, then the Eulerian lines of the triangles ABC, BCI, CAI and ABI intersect in one point. This intersection was in 1985 by the toy manufacturers and Amateurgeometer Kurt Schiffler ( 1896-1986 ) introduced in the Canadian mathematics journal Crux Mathemati Corum and is now called the Schiffler point.

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