Mathematics 0580 · IGCSE · Circles, arcs and sectors

Circles, arcs and sectors — practice question

The diagram depicts a semicircle whose diameter measures 9 cm. The diagram is not drawn to scale.
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Calculate the total perimeter of the semicircle shown.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The answer is $23.1$, or $23.14$ when rounded suitably.” …

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