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Math Help - Help prove the following is true.

  1. #1
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    Help prove the following is true.

    Prove that BC = 2XY




    Thanks in advance =]
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  2. #2
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    I think you need to prove that they are similiar triangles not sure though
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  3. #3
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    Sorry, picture is uploaded now
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  4. #4
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    geometry proof

    originally posted by ferken


    yes the proof is easy.you have two similar triangles and they are in the ratio of 1 to 2




    bj
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  5. #5
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    hmmm

    more help is appreciated =]
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  6. #6
    MHF Contributor chiph588@'s Avatar
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    they're similar by SAS
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  7. #7
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    grometry proof

    originally posted by ferken
    Additional help requested

    the line connecting the midpoints of two sides of a triangle is parallel to the third side. from this you can show that triangle AXY is similar to ABC by angle-angle- angle


    bj
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