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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
    (Give all answers correct to 3 significant figures)
    I think number ii) is incorrect? Can someone please explain how to do these questions I have no idea.
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    sine and cosine rule is relevant
    you just need to choose which one is relevant to this question
    Spoiler:
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    but i am not sure SURE
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    (Original post by fatima1998)
    sine and cosine rule is relevant
    you just need to choose which one is relevant to this question
    Spoiler:
    Show
    but i am not sure SURE
    thanks ❤•.¸✿¸.• 𝓢𝓽𝓾𝓭𝔂 ℋ𝒆𝓵𝓹𝒆𝓻 •.¸✿¸.•❤
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    (Original post by ❤✿𝓢𝓽𝓾𝓭𝔂 ℋ𝒆𝓵𝓹𝒆𝓻✿❤)
    thanks ❤•.¸✿¸.• 𝓢𝓽𝓾𝓭𝔂 ℋ𝒆𝓵𝓹𝒆𝓻 •.¸✿¸.•❤
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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
    (Give all answers correct to 3 significant figures)
    I think number ii) is incorrect? Can someone please explain how to do these questions I have no idea.
    look at your diagram again, you have done a bearing of 060

    also from B to C, that isn't how you do the bearing. Always start looking north (ie up to page) and go clockwise

    Edit: re-reading this it sounds very rude, i didn't mean that way, sorry
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    too late ...
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    (Original post by DylanJ42)
    look at your diagram again, you have done a bearing of 060

    also from B to C, that isn't how you do the bearing. Always start looking north (ie up to page) and go clockwise

    Edit: re-reading this it sounds very rude, i didn't mean that way, sorry
    I agree with you and I have tried the other way too, but I am still confused.
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    (Original post by Marmite170899)
    I agree with you and I have tried the other way too, but I am still confused.
    Name:  work.jpg
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    from 0-10, how much sense does this make to you?

    could you finish it from here do you think?

    as someone above said, its all about sin and cos rules
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    (Original post by DylanJ42)
    Name:  work.jpg
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Size:  84.5 KB

    from 0-10, how much sense does this make to you?

    could you finish it from here do you think?

    as someone above said, its all about sin and cos rules
    I would give it an 8. Thank you I understand it much more now.
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    (Original post by Marmite170899)
    I would give it an 8. Thank you I understand it much more now.
    8/10 is not too bad just practice lots of them and that will be 10/10 in no time its no problem
 
 
 
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