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Homework Help: Geometry terminology: altitude from vertex, median from vertex, the bisector of angle

  1. Dec 10, 2011 #1
    1. The problem statement, all variables and given/known data

    So these are line segments in triangles. I don't understand how they are different.

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Dec 10, 2011 #2
    Re: Geometry terminology: altitude from vertex, median from vertex, the bisector of a

    1zgldu.jpg

    The altitude is a line from some vertex to the other side of the triangle (first pic). The median is a line from some vertex to the middle of the side across from it (middle pic). The bisecting angle or whatever it's called is simply a line cast in the direction of 1/2 the angle (last pic)
     
  4. Dec 10, 2011 #3
    Re: Geometry terminology: altitude from vertex, median from vertex, the bisector of a

    Actually, I found a much better image than my mspaint thing.

    image003.gif

    Consider this triangle ABC

    The line from A, straight down is the altitude. The one from A to the middle of the base (close to the a), is the median, and the one that is 1/2 the angle of BAC is the bisector.
     
  5. Dec 11, 2011 #4
    Re: Geometry terminology: altitude from vertex, median from vertex, the bisector of a

    So the median is not the same as the angle bisector?
     
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