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    Can someone help me work this out?

    The question is attached. I can work out angle BAC, but how do I go about working out a and b?

    am I right in thinking that coprime means that both numbers are only divisible by 1?

    And what level maths would you place this as? (GCSE,A-Level, etc) I'm curious because I haven't encountered a problem like this before.
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    (Original post by ThatPerson)
    Can someone help me work this out?

    The question is attached. I can work out angle BAC, but how do I go about working out a and b?

    am I right in thinking that coprime means that both numbers are only divisible by 1?

    And what level maths would you place this as? (GCSE,A-Level, etc) I'm curious because I haven't encountered a problem like this before.
    Probably GCSE level.

    Coprime means that the only factor they have in common is 1.

    In this case it means that b/a is written in lowest possible terms of b and a.
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    (Original post by ghostwalker)
    Probably GCSE level.

    Coprime means that the only factor they have in common is 1.

    In this case it means that b/a is written in lowest possible terms of b and a.
    Is the answer 9?
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    (Original post by ThatPerson)
    Is the answer 9?
    yes
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    As TenOfThem said.
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    (Original post by ghostwalker)
    As TenOfThem said.
    Only with a capital letter and a full stop
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    (Original post by TenOfThem)
    Only with a capital letter and a full stop
    Don't get me started. Your neglect of punctunation verges on being legendary.

    Oh dear, there I go

    And no full stop!
 
 
 
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