Question

Find the area of the shaded sector QRS

Answer 1

The diagram given is a sector, and from the diagram

Radius(r) = 9 in

`\theta=120^(\cdot)`
`\begin{gathered} \text{Area of a sector = }(\theta)/(360)*\pi r^2 \\ \\ \text{Area of a sector = }(120)/(360)*(22)/(7)*9^2 \\ \text{Area of a sector =}(19440)/(2520)=7.71in^2 \end{gathered}`