Mathematics 0580 · IGCSE · Circles, arcs and sectors

Circles, arcs and sectors — practice question

The diagram depicts a sector of a circle whose centre is O and whose radius measures 9 cm. The chord PQ has length 6 cm.
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Calculate how long arc PQ is.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Application of $\sin\theta=\frac{3}{9}$ or cosine rule” …

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