1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Question using the Sine Rule and Bearings

  1. Aug 30, 2012 #1
    1. The problem statement, all variables and given/known data
    3 towns are located at D,F & E; the vertices of an scalene triangle. The bearing of F from D is 48 degrees. D to E=640m and E to F=430m. Point G is located at the end of a south line at F.

    a)i)Find angle DFG
    ii) Find angle GFE
    iii) Find angle DFE

    b) Calculate angle EDF
    c)Calculate the bearing of E from D
    d)What is the distance between D & F


    2. Relevant equations
    a/sinA=b/sinB=c/sinC


    3. The attempt at a solution
    a)i) I got 48 degrees because I used a z-angle
    ii) This is the one I can't get so I can't do the rest. I've tried quite a few ways but can't seem to get it so there must be something I'm missing.
     
  2. jcsd
  3. Aug 30, 2012 #2
    I've got it now there was angle missing from the diagram :L
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Question using the Sine Rule and Bearings
  1. Sine rule (Replies: 4)

Loading...