Mathematics 0580 · IGCSE · Circles, arcs and sectors

Circles, arcs and sectors — practice question

The diagram depicts a sector of a circle, with centre $O$ and radius 12.6 cm. The central angle is $80^{\circ}$. The shaded part is a segment. The figure is marked NOT TO SCALE.
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Calculate the perimeter of the shaded segment.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$33.8$, or $33.78$ to $33.80$” …

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