A non-right-angled triangle

A non-right-angled triangle

IP 2
3 marks
TGM Original Questions

In triangle \(ABC\), \(AB=7\) cm, \(AC=9\) cm and \(\angle BAC=60^\circ\).

  1. Find \(BC\). Give your answer to \(3\) significant figures.[2]
  2. Find the area of triangle \(ABC\), to \(3\) significant figures.[1]

Solution:

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Answer:(a) \(8.19\text{ cm}\) (b) \(27.3\text{ cm}^2\)

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