Results 1 to 2 of 2

Math Help - triangular pyramid

  1. #1
    Member Veronica1999's Avatar
    Joined
    Jan 2010
    From
    Jupimar
    Posts
    160

    triangular pyramid

    Suppose that the lateral faces VAB, VBC and VCA of a triangular pyramid VABC all have the same height drawn from V. Let F be the point in plane ABC that is closest to V, so that VF is the altitude of the pyramid. Show that F is one of the special points of triangle ABC.

    Pls find attached work.
    Can i assume this is an equal lateral triangle?
    If not i don't think i can get the altitude.
    Attached Files Attached Files
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor Unknown008's Avatar
    Joined
    May 2010
    From
    Mauritius
    Posts
    1,260
    If the perpendicular bisector of one side of a triangle meets a vertex of a triangle, it means that the two sides adjacent of that vertex are equal in length. If you have all three perpendicular bisectors meeting with the three opposite vertices, then the triangle is equilateral.

    Otherwise, it's not.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: February 24th 2011, 01:46 PM
  2. Replies: 2
    Last Post: January 18th 2011, 08:24 PM
  3. Area of a triangular pyramid
    Posted in the Geometry Forum
    Replies: 2
    Last Post: April 18th 2010, 12:58 PM
  4. Triangular Pen
    Posted in the Geometry Forum
    Replies: 2
    Last Post: November 16th 2008, 09:41 PM
  5. [SOLVED] Geometry HELP!!! Triangular Pyramid
    Posted in the Geometry Forum
    Replies: 1
    Last Post: February 5th 2008, 11:39 PM

Search Tags


/mathhelpforum @mathhelpforum