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Math Help - similar triangles help

  1. #1
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    Exclamation similar triangles help

    similar triangles help-f63d53e45fbe83692013db41c80bd0df84af99bd.png
    Last edited by vegasgunner; November 25th 2013 at 05:44 AM.
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    Re: similar triangles help

    Quote Originally Posted by vegasgunner View Post
    Click image for larger version. 

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    This might not be the most straightforward method, but you can find the area of the trapezoid ABCD. Then note that triangle ABE is similar to triangle FGE.

    Can you continue from here?

    -Dan
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  3. #3
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    Re: similar triangles help

    did you mean trapezoid AFGB?
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  4. #4
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    Re: similar triangles help

    Hint: Length FG is 3 units in length, and because triangle EAB is similar to triangle EFG, and length AB is 6 units, the scaling factor for the lengths is 2, and thus the scaling factor for the areas is 4.
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