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Math Help - Trig prob

  1. #1
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    Talking Trig prob

    A cross-country competitor runs on a bearing of N60W for 2 km, then due north for 3 km.

    a) How far is he from the starting point?
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  2. #2
    No one in Particular VonNemo19's Avatar
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    No one will ever know the answer if there is NOT ENOUGH INFORMATION GIVEN!! To solve an oblique triangle you must have at least one of the following:
    a) Two sides and an included angle.

    b) All three sides.

    Let me know when you get serious Joker.
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  3. #3
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    Wink

    Quote Originally Posted by VonNemo19 View Post
    Let me know when you get serious Joker.
    No despite my username being called what it is, I am always serious and today was no exception. Are you sure you are unable to solve it? The answer is supposed to be 4.36 km...sounds pretty precise.

    Maybe from the information already given it is possible to find out other details?
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  4. #4
    No one in Particular VonNemo19's Avatar
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    The included angle is 150 degrees!

    And then the law oof cosines with the sides (2 and 3) are all ya need!

    Im so stupid!
    But ya gotta admit, if he went an other way but due north it was over!
    Last edited by VonNemo19; April 21st 2009 at 12:17 PM. Reason: add
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