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Math Help - kindly help me for this proof of triangles

  1. #1
    Member moonnightingale's Avatar
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    kindly help me for this proof of triangles

    the question and figure is attached
    The figure which will help you is also attached
    Attached Thumbnails Attached Thumbnails kindly help me for this proof of triangles-math.jpg   kindly help me for this proof of triangles-2-ray_ground_reflection_model_1.jpg  
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  2. #2
    MHF Contributor
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    Hi

    You need to use the fact that angle \theta is unchanged at reflection

    Using Pythagorean theorem

    l = \sqrt{(h_t-h_r)^2+d^2}

    x + x' = \sqrt{(h_t+h_r)^2+d^2}


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