Simple relations regarding the Steiner inellipse of a triangle - Benedetto Scimemi By applying analytic geometry within a special Cartesian reference, based on the Kiepert hyperbola, we prove a great number of relations (collinearities, similarities, inversions etc.) regarding central points, central lines and central conics of a triangle. Most - not all - of these statements are well-known, but somehow dispersed throughout the literature. Some relations turn out to be easy consequences of the action of a conjugation - an involutory M"obius transformation - whose fixed points are the foci of the Steiner inellipse. ✪ ✪ ✪ ✪ ✪ Hidden Content: **Hidden Content: Content of this hidden block can only be seen by members of (usergroups: V.I.P Downloader).** Theo LTTK Education
