2025 MSHS PRELIMS P1 Q10

2025 MSHS PRELIMS P1 Q10

Secondary 4
5 marks

In the diagram, \(PXR\) is a straight line, angle \(PRQ=90^\circ\), \(PQ=17\text{ cm}\), \(QR=8\text{ cm}\), and the area of triangle \(PXQ\) is \(36\text{ cm}^2\).

Calculate

  1. \(RX\),[3]
  2. \(\cos\angle QXP\).[2]

Solution:

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Answer:(a) \(6\text{ cm}\) (b) \(-\frac35\)

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