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Thread: triangle

  1. Nov 20th 2009, 09:00 PM #1
    thereddevils
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    triangle

    In triangle ABC , the midpoint of BC is D . THe line that passes through B and parallel to DA intersects CA produced at E . THe line that passes through C and parallel to DA intersects BA produced at F . Prove that BE=CF .
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  2. Nov 20th 2009, 10:56 PM #2
    bigwave
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    a is the midpoint of CE and BF

    a is the midpoint of CE and BF

    from this and with parallel lines
    it is easy to prove that triangles EBA and ACF are the same
    and therefor BE = CF

    can you build on this....
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