IB Math HL Trigonometry Test 6 2018 P2 Q2

IB Math HL Trigonometry Test 6 2018 P2 Q2

IB Year 6 | Grade 12
6 marks

A ship sails \(50\text{ km}\) from \(A\) on a bearing of \(070^\circ\) to \(B\), then another \(50\text{ km}\) from \(B\) on a bearing of \(010^\circ\) to \(C\).

  1. Find \(AC\).[4]
  2. Find the bearing of \(C\) from \(A\).[2]

Solution:

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Answer:(a) \(50\sqrt3\text{ km}\). (b) \(040^\circ\).

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