7
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{1e43ddbe-ae95-467b-a527-351ab8a4c4fe-003_305_897_310_795}
\captionsetup{labelformat=empty}
\caption{Fig. 7}
\end{figure}
Fig. 7 shows a sector of a circle of radius 5 cm which has angle \(\theta\) radians. The sector has area \(30 \mathrm {~cm} ^ { 2 }\).
- Find \(\theta\).
- Hence find the perimeter of the sector.