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Thread: Could you please explain these pythagoras equations?

  1. #1
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    Could you please explain these pythagoras equations?

    Could you please explain these pythagoras equations?-capture.jpg
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  2. #2
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    Re: Could you please explain these pythagoras equations?

    Those aren't "Pythagorean" equations (though they are related) because these are not right angles. This is the
    "cosine law". If a triangle (right triangle or not) has side lengths of "a", "b", and "ac", with angle "C" opposite the side of length "c" then c^2= a^2+ b^2- 2ab cos(C).
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