Results 1 to 5 of 5

Math Help - Help please!!

  1. #1
    Newbie
    Joined
    Nov 2009
    Posts
    3

    Help please!!

    TRIANGLE DEF has vertices D(4,5) E(-4,3) F(0,-5). Determine
    a)An equation of EB, the median from E to DF
    b)an equation of FA, the altitude from f to DE
    c)an equation of PQ, the right bisector of EF

    This question doesnt really make sense to me so if u can help me i really appreciate it. : D
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member bigwave's Avatar
    Joined
    Nov 2009
    From
    honolulu
    Posts
    580

    Talking

    a median of triangle is a line drawn from a vertex ot the triangle to the midpoint of the opposite side of the triangle.

    first find the slopes of sides of the triangle
    then use point slope form to get the equations

    the midpoint is just distance between vertexes divided by 2
    use the distance formula

    can you get it from here....
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Nov 2009
    Posts
    3
    yea but i learned that already But i never learn how to do B and C
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Super Member bigwave's Avatar
    Joined
    Nov 2009
    From
    honolulu
    Posts
    580

    Talking

    an altitude of a triangle is a line drawn from a vertex to the triangle perpendicular to the opposite side of the triangle.

    c) is just a perpendicular line going thru the midpoint of EF.... at least assuming that what they mean by "right bisector" ussually its called "perpendicular bisector"

    will show the math if you want... let me go home first
    i am at work.... unless others help...
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Nov 2009
    Posts
    3
    i would appreciate if you show me the calculation
    thanks you
    Follow Math Help Forum on Facebook and Google+


/mathhelpforum @mathhelpforum