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Math Help - Reference angle

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    Reference angle

    How would I find the reference angle [theta][sub R] if [theta]=210 degrees?
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    Quote Originally Posted by gretchen View Post
    How would I find the reference angle [theta][sub R] if [theta]=210 degrees?
    Briefly put, the reference angle is the magnitude of the smallest angle between the given angle and either the + x axis (0 degrees) or the - x axis (180 degrees). Here we have:
    210 - 180 = 30.

    -Dan
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    So, if I would to answer it in degrees, it would be [pi]/6.

    Thanks.
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    Forum Admin topsquark's Avatar
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    Quote Originally Posted by gretchen View Post
    So, if I would to answer it in degrees, it would be [pi]/6.

    Thanks.
    It would be 30 degrees = [pi]/6 rad.

    -Dan
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