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Math Help - Hight trig word problem - How high above the street is the light? - Am very stuck

  1. #1
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    Hight trig word problem - How high above the street is the light? - Am very stuck

    I am stuck on a trig word problem. The problem shows a diagram of a street light. The length of the base pole is 28.0ft, the length of the pole connected from base pole to street light is 12.5ft. The angle of the connected poles is 20.0 degrees. How high above the street is the light?
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  2. #2
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    Re: Hight trig word problem - How high above the street is the light? - Am very stuck

    Do you mean like this?

    Hight trig word problem - How high above the street is the light? - Am very stuck-streetlight.png

    If so, use the definition of cosine applied to the triangle ABC.
    Last edited by emakarov; June 26th 2012 at 04:39 AM.
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  3. #3
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    Re: Hight trig word problem - How high above the street is the light? - Am very stuck

    Yes That is what I mean. Thank you
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