Mathematics 9709 · AS & A Level · Circular measure

Circular measure — practice question

(main)[4]

A sector in a circle with radius $r$ cm has area $A$ cm$^2$. Write down the perimeter of the sector in terms of $r$ and $A$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Applies the area formula $A = \frac{1}{2} r^2 \theta$” …

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