Jean-Pierre Ehrmann and Floor van Lamoen, The Stammler Circles

Forum Geometricorum, 2 (2002) 151--161.

Abstract:  We investigate circles intercepting chords of specified lengths on the sidelines of a triangle, a theme initiated by L. Stammler. We generalize his results, and concentrate specifically on the Stammler circles, for which the intercepts have lengths equal to the sidelengths of the given triangle.

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