Σάββατο 27 Μαΐου 2023

GEORGE L. GIBSON (Publisher)

LETTER

BOOK


David Blatner, The Joy of π. Walker Publishing Company, Inc. 1997

Mail Antreas P. Hatzipolakis

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LOCUS PROBLEM

Problem by Antreas Hatzipolakis Solution by Francisco Javier García Capitán ETC LISTING OF Q X(72803)

  • EUCLID 4404
  • ETC
    X(5459) Let ABC be a triangle, let A', B', C' be the midpoints of BC, CA, AB. Let L_a be the perpendicular through A' ...
  • HOMOTHETIC TRIANGLES and EULER LINES
    Theorem 1. Let ABC be an equilateral triangle and P a point. The Euler lines of the triangles PBC,PCA,PAB are concurent.Denote the point ...