Trigonometry with Right Angles and Given Side Lengths

Trigonometry with Right Angles and Given Side Lengths

Secondary 2

In the diagram, \(\angle BQC=90{}^\circ \), \(\angle BCA=75{}^\circ \), \(BC=9.2\) cm, \(PB=10.1\) cm and \(AB=12.5\) cm.

Calculate

  1. \(BQ\),
  2. \(PQ\),
  3. \(AP\),
  4. angle \(APB\).

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Answer:(a) \(8.89\text{ cm}\) (b) \(4.80\text{ cm}\) (c) \(3.99\text{ cm}\) (d) \(118.4^\circ\)

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