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Thread: Inscribed triangle problem

  1. January 5th 2012, 08:30 PM #1
    BERMES39
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    Inscribed triangle problem

    I need help with the following problem.

    Triangle ABC is inscribed in a circle. From a point P on the circumference 3 lines are drawn perpendicularly to the three triangle sides intersecting them at points R, S and T.

    Prove that R, S and T are collinear.

    Thank you in advance.
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  2. January 5th 2012, 11:39 PM #2
    Opalg
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    Re: Inscribed triangle problem

    See Simson line - Wikipedia, the free encyclopedia.
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