Results 1 to 2 of 2

Math Help - Vector proofs for triangles

  1. #1
    Senior Member
    Joined
    Jul 2009
    From
    Singapore
    Posts
    338

    Vector proofs for triangles

    Prove that the internal bisectors of a triangle are concurrent.

    I found the vectors for the angle bisectors of the triangle, and their sum is equal to 0, does this mean then that the lines are concurrent?

    I have another question similar, asking me to prove that the perpendicular bisectors of a triangle are concurrent, I think its about the same.
    Thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    Jun 2009
    Posts
    806
    Thanks
    4
    If the sum of three vectors is zero, either they form a triangle or they are cuncurrent.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. vector space proofs
    Posted in the Advanced Algebra Forum
    Replies: 4
    Last Post: October 18th 2009, 05:27 AM
  2. vector space proofs
    Posted in the Advanced Algebra Forum
    Replies: 2
    Last Post: October 4th 2009, 04:36 PM
  3. Vector Proofs
    Posted in the Geometry Forum
    Replies: 4
    Last Post: December 7th 2006, 12:41 PM
  4. Need some help, vector proofs
    Posted in the Geometry Forum
    Replies: 1
    Last Post: April 21st 2006, 11:17 AM
  5. Vector Proofs
    Posted in the Geometry Forum
    Replies: 1
    Last Post: October 15th 2005, 11:49 PM

Search Tags


/mathhelpforum @mathhelpforum