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5 marksApplying Trigonometric Ratios

CSEC Mathematics · May/June 2008 · Paper 2 · Question 6(a)(ii)a)

In the diagram below, not drawn to scale, GH is a vertical pole standing on a horizontal plane and H, J and K are points on the horizontal plane. GH = 12 metres and the angles of elevation of the top of the pole G from J and K are 32° and 27° respectively.

Calculate to one decimal place the length of HJ.

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Other parts of this question

  1. 6(a)(i)Copy the diagram and insert the angles of elevation.[1 mark]
  2. 6(a)(ii)b)Calculate to one decimal place the length of JK.[5 marks]
  3. 6(b)(i)Describe this transformation completely.[2 marks]
  4. 6(b)(ii)a)On the answer sheet provided, draw and label the line y = x.[4 marks]
  5. 6(b)(ii)b)On the answer sheet provided, draw and label S, the image of P under a reflection in the line y = x.[4 marks]

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