Mathematics 0580 · IGCSE · Non-right-angled triangles

Non-right-angled triangles — practice question

The figure shows a triangle in which $CB = 8.15\text{ m}$, the angle at $A$ is $110^\circ$, and the angle at $B$ is $30^\circ$. It is labelled NOT TO SCALE.
(main)[3]

Calculate the value of $AC$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: Sine-rule form: $\frac{8.15\sin30}{\sin110}$

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