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Math Help - Triangle area problem

  1. #1
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    Triangle area problem

    It is known that the AD and GD are equally trisected (i.e. AB=BC=CD and DE=EF=FG) and the area of triangle ADG is 1cm2. What is the area of the quadrilateral CDEH? With many thx!!!
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  2. #2
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    Re: Triangle area problem

    What is H?
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  3. #3
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    Re: Triangle area problem

    Hello, tsuialex!

    Obviously, we can't see your diagram.


    It is known that the AD and GD are equally trisected (i.e. AB = BC = CD and DE = EF = FG)
    and the area of triangle ADG is 1 cm2. .What is the area of the quadrilateral CDEH?
    I have the same question: where is H?

    Code:
                   D
                   o
                  *  *
                 *     *
              C o  -  -  o E
               *  *     *  *
              *     *  *     *
           B o  -  -  ♥  -  -  o F
            *  *     *H *     *  *
           *     *  *     *  *     *
        A o  *  *  *  *  *  *  *  *  o G
    Assuming H is the central point indicated above,
    . . we note that \Delta ADG is divided into 9 congruent triangles.

    Therefore . . .
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