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Homework Help: Degrees to radians

  1. Oct 14, 2009 #1
    convert 75 degrees to radian measure

    the answer is 5/12 pi

    i know that for converting degrees to radians you multiply the degrees by pi/180 degrees and when i do it i get the answer 1.3089... but how do you get the answer as above, in that form? i have changed the mode of my calculator from degrees to radians and vice versa but i cant get the answer in that notation.
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Oct 14, 2009 #2
    Re: radians

    Reduce 75[itex]\pi[/itex]/180 and leave it in terms of pi; don't put it in the calculator.
    Last edited by a moderator: Oct 14, 2009
  4. Oct 15, 2009 #3
    Re: radians

    Following Bohrok's advice, you basically never evaluate [itex]\pi[/itex] unless you are doing some sort of physical application where it's nice to have the approximate solution.
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