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Math Help - Law of Sines/Cosines help.

  1. #1
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    Law of Sines/Cosines help.

    Hey Everyone,
    Please help me with these. I will really appreciate it!!


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  2. #2
    Forum Admin topsquark's Avatar
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    Re: Law of Sines/Cosines help.

    So how far have you got?

    -Dan
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  3. #3
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    Re: Law of Sines/Cosines help.

    To be honest, I really don't know how to do them. This worksheet is supposed to be a self teach from textbook, but I don't get it. I would really appreciate if you can do these problems for me!
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  4. #4
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    Re: Law of Sines/Cosines help.

    The problem says "Draw a picture to depict this scenario". So draw a picture! Drawa Cassie and a horizontal line extending from her, since we are given "angle of elevation" and "angle of depression" which are measured from the horizontal. Draw a line at 53 degrees to that horizontal, from Cassie to the bird. Draw a line at 27 degrees below the horizontal to Emily, directly below the bird. That gives a triangle where one of the sides has length 50 feet and the opposite angle is 53+ 27= 80 degrees. Now, as for determining the distance to the bird, it is not clear that we have enough information. One side and one angle are not enough.
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