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Math Help - radians question.

  1. #1
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    radians question.

    hey guys.. got a problem with this question.
    there is a clock.. the minute hand measures 2 metres.
    Question: through what angle in radians does the minute hand pass between 8:10am and 8:46am???
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  2. #2
    Moo
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    Hi

    You know that a complete circle is 2pi radians

    When the minute hand goes through a complete circle, it's 60 minutes.

    You want to know what is the angle corresponding to 8:10->8:46, that is to say 36min.
    So if x is the angle you want to find, we got : x/2pi = 36/60
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  3. #3
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    Quote Originally Posted by Moo View Post
    Hi

    You know that a complete circle is 2pi radians

    When the minute hand goes through a complete circle, it's 60 minutes.

    You want to know what is the angle corresponding to 8:10->8:46, that is to say 36min.
    So if x is the angle you want to find, we got : x/2pi = 36/60
    yeah the way i did it was..

    360/60 = 6
    then 36 * 6 = 216 degrees. Now we convert degrees to radians by multiplying 216 by (pi/180). This should give us 6pi/5 radians
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