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    mciarlone's Avatar
    mciarlone Posts: 1, Reputation: 1
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    #1

    Jun 6, 2012, 03:44 PM
    Trig land bearing
    I have to do this for extra credit and I really need the points, so PLEASE HELP!

    The bearing of town B from town A is N 47degrees E and the distance between the two is 120 miles. The bearing of town C to B is N 75degrees E. The bearing of A from C is S 60degrees W. Determine the distance from A to C.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Jun 7, 2012, 06:11 AM
    You can use the law of sines to find the distance |AC|. First you need to find the internal angles of C (the angle between lines CA and CB) and B (angle between BC and BA). Then apply the law of sines:
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