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Homework Help: How do u convert relative angle to absolute angles?

  1. Mar 21, 2010 #1
    ie: in the figure theta 3 i got i want theta 2 what formula would i use
     

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  2. jcsd
  3. Mar 21, 2010 #2

    help please
     
  4. Mar 21, 2010 #3
    I think it's th2=th1+th3-180
     
  5. Mar 21, 2010 #4

    D H

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    There isn't enough information to tell.
     
  6. Mar 22, 2010 #5
    two_part_arm.gif

    It's basic geometry.
    Assuming the line I've drawn is parallel to the x axis

    th2 = th3 -th
    and
    th = 180 - th1
    Therefore
    th2 = th1 + th3 - 180
     
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