Problem
The area of the circle below is $59 \mathrm{~cm}^{2}$. The area of the minor sector $\mathrm{OAB}$ is $\frac{1}{7}$ of the area of the circle. Work out the area of the minor sector $\mathrm{OAB}$. Give your answer to 1 d.p.
Solution
Step 1 ：Find the area of the minor sector OAB: \(Area_{OAB} = Area_{circle} \times Fraction\)
Step 2 ：Calculate the area: \(Area_{OAB} = 59 \times \frac{1}{7} = \boxed{8.4} \, cm^2\)
