New Home Forums Math Olympiad - IOQM Circumscribe circle

Tagged: 

Viewing 1 post (of 1 total)
  • Author
    Posts
  • #21423
    swastik pramanik
    Participant

    A triangle ABC circumscribes a circle, with points of contact being X, Y, Z. If the feet of the altitudes of triangle XYZ are D, E, F. Prove that the sides of triangle DEF are parallel to the sides of triangle ABC.

    [Source: Challenge and Thrills of Pre-college Mathematics, Exercise:4.2, Question no.-24, Pg no.-98]

Viewing 1 post (of 1 total)
  • You must be logged in to reply to this topic.
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram