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IP2U12 Exercise Trigonometry II (also for 3EM U7 Worksheet) Q3

IP2U12 Exercise Trigonometry II (also for 3EM U7 Worksheet) Q3

IP 2

In the diagram, \(PQR\) is a straight line, \(\angle QRS = 90^\circ\), \(QS = 13\) cm and \(QR = 5\) cm.

  1. Write \(\cos x\) as a fraction.
  2. Find \(y\).

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Answer:(i) \(-\frac5{13}\) (ii) \(22.6^\circ\)

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