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Math Help - Smallest angle of right-triangle.

  1. #1
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    Smallest angle of right-triangle.

    I don't even have an idea on how to start.AIks..

    The perimeter of a right angled triangle is n times of the length of its shortest side. Show that the smallest angle θ of the triangle satisfies the equation.
    1+ cosθ=(n-1) sinθ
    Last edited by mr fantastic; March 23rd 2011 at 04:43 AM. Reason: Re-titled.
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  2. #2
    MHF Contributor
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    Hi

    Let x be the length of the hypotenuse and \theta one of the acute angles of the rectangle
    What are the lengths of the 2 other sides ?
    What is the perimeter ?
    Write that the perimeter is n times of the length of the shortest side
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  3. #3
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    Oh yes!!! Thank you so much!!
    Now i know its that easy!><
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