Dear Friends Hyacinthos:
A new edition of the research journal Trianguloscabri, with three proposals:
One dedicated to my students of the Faculty of Education of Sevilla University who have investigated a property using a pull or tug
Kepler's triangle from the excellent book by Askew, M. and Ebbutt, S. (2010): Précis of Geometrie Petit à déguster. (pur curieux them voulent qui tout comprendre) In the Conquête Pythagorea spatiale: Geometrie dela l'ABC.
A dual characterization of right triangles made by the Spanish mathematician Juan Bosco Romero.
Best regards from Sevilla.
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