Schiffler's theorem

proper noun

A theorem stating that, given a triangle △ABC with the incenter I, the Euler lines of the four triangles △BCI, △CAI, △ABI, △ABC all meet at a single point (the Schiffler point).

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Meanings

proper noun
  1. geometryA theorem stating that, given a triangle △ABC with the incenter I, the Euler lines of the four triangles △BCI, △CAI, △ABI, △ABC all meet at a single point (the Schiffler point).
Cite this entry
APA

Schiffler's theorem. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Schiffler's%20theorem

MLA

“Schiffler's theorem.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Schiffler's%20theorem. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Schiffler's theorem,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Schiffler's%20theorem.

Source: Schiffler's theorem on Wiktionary, CC BY-SA 4.0.