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    sydneycalvo's Avatar
    sydneycalvo Posts: 2, Reputation: 2
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    #1

    Oct 2, 2011, 12:43 AM
    Bearing trigonometry?
    Point C has a bearing N 28 degrees E from point A and a bearing of N 12 degrees E from point B.What is the area of triangle ABC if B is due East of A and 25km from A?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Oct 4, 2011, 05:58 AM
    You can use the law of sines to find the length AC, then law of sines again to find the distance from C to the east-west axis. From there just remember that the area of triangle ABC is one half the base (length AB) times the height (the distance from C to the east-west axis). Post back whet you get for an answer.

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