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How do I do this trigonometry question ? watch

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    Three points A, B and C lie on a level plane.
    B is 7 km from A on a bearing of 030°.
    C is 5 km from B on a bearing of 280°.
    i) Find the distance AC.
    ii) Find the bearing of A from C
    iii) Find the area of triangle ABC
    All answers need to be in 3 significant figures.
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    (Original post by Marmite170899)
    Three points A, B and C lie on a level plane.
    B is 7 km from A on a bearing of 030°.
    C is 5 km from B on a bearing of 280°.
    i) Find the distance AC.
    ii) Find the bearing of A from C
    iii) Find the area of triangle ABC
    All answers need to be in 3 significant figures.
    what have you tried, are you able to post some workings? or maybe a diagram?
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    (Original post by Marmite170899)
    Three points A, B and C lie on a level plane.
    B is 7 km from A on a bearing of 030°.
    C is 5 km from B on a bearing of 280°.
    i) Find the distance AC.
    ii) Find the bearing of A from C
    iii) Find the area of triangle ABC
    All answers need to be in 3 significant figures.
    Have you drawn a diagram out? And btw next time post in the maths forum:

    http://www.thestudentroom.co.uk/forumdisplay.php?f=38
 
 
 
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