Question

work out the area of a sector of a circle. give your answer in terms of π, can u plz show how u worked it out, thx :)

Answer 1

$\bf \textit{area of a sector of a circle}\\\\ A=\cfrac{\theta\pi r^2}{360}\qquad \begin{cases} \theta=\textit{angle in degrees}\\ r=radius\\ --------\\ r=8\\ \theta=40 \end{cases}\implies A=\cfrac{40\cdot \pi \cdot 8^2}{360}$