Quelpr
2 marksTrigonometric Ratios (Acute Angles)

CSEC Mathematics · January 2016 · Paper 2 · Question 5(a)(ii)

A diagram shows a triangle WRT with ST = 6 m, WR = 11.2 m, WT = 14.8 m and angle WRS = 90°.

the measure of angle RTW.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 5(a)(i)Calculate, giving your answer to 1 decimal place, the length RS.[2 marks]
  2. 5(b)(i)Write down the coordinates of the vertices of ΔABC.[1 mark]
  3. 5(b)(ii)Write down the coordinates of the vertices of ΔA'B'C'.[1 mark]
  4. 5(b)(iii)Describe FULLY the transformation that maps triangle ABC onto triangle A'B'C'.[2 marks]
  5. 5(b)(iv)On the graph on page 16, draw the line x = 1 AND the triangle A''B''C'', the image of triangle ABC after a reflection in the line x = 1.[3 marks]
  6. 5(b)(v)State ONE geometrical relationship among ΔABC, ΔA'B'C' and ΔA''B''C''.[1 mark]

More practice: the rest of this paper · more Trigonometric Ratios (Acute Angles) questions · all CSEC Mathematics past papers