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Math Help - Finding an angle?

  1. #1
    Newbie
    Joined
    Jun 2005
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    10

    Finding an angle?

    If an angle is in the second quadrant and the reference angle is 25 degrees, find the angle?

    How in the world do I do this? Please help anyone! THANKS!
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  2. #2
    MHF Contributor
    Joined
    Apr 2005
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    A reference angle is an acute angle---that is less than 90 degrees---measured from the x-axis.

    So if the reference angle is 25 degrees and the angle in question is in the 2nd quadrant, then from the x-axis in the 2nd quadrant we go up 25 degrees. And the angle in question is:
    180 -25 = 155 degrees ------answer.
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