Mathematics 0580 · IGCSE · Circles, arcs and sectors

Circles, arcs and sectors — practice question

A circle’s area is $25\pi\text{ cm}^2$.

(a)[3]

Find the circumference of the circle. Write your answer in terms of $\pi$.

(b)[3]

Find the value of $h$.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “M1: Set up $25\pi = \pi r^{2}$” …