Quelpr
2 marksSine and Cosine Rules

CSEC Mathematics · January 2013 · Paper 2 · Question 10(b)(i)a)

The diagram shows the position of three points A, B and C on a horizontal plane. AB = 174 metres, BC = 65 metres and AC = 226 metres.

Calculate the measure of angle ABC.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 10(a)(i)Calculate, giving reasons for your answer, the measure of ∠ MRQ.[2 marks]
  2. 10(a)(ii)Calculate, giving reasons for your answer, the measure of ∠ PMR.[2 marks]
  3. 10(a)(iii)Calculate, giving reasons for your answer, the measure of ∠ PMN.[3 marks]
  4. 10(b)(i)b)Calculate the area of triangle ABC.[2 marks]
  5. 10(b)(ii)a)In your answer booklet, draw the triangle TAB showing the angle of elevation.[2 marks]
  6. 10(b)(ii)b)Calculate the height, TA, of the lighthouse.[2 marks]

More practice: the rest of this paper · more Sine and Cosine Rules questions · all CSEC Mathematics past papers