Applying Sine Rule When Given 2 Sides and 1 Non-Included Angle

Applying Sine Rule When Given 2 Sides and 1 Non-Included Angle

Secondary 3

In triangle \(XYZ\), \(XY=15.8\) cm, \(YZ=28.4\) cm and \(\angle YXZ=74{}^\circ \).

Calculate \(\angle XZY\).
Calculate the area of \(\Delta XYZ\).

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Answer:(i) \(32.3^\circ\) (ii) \(215\text{ cm}^2\)

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