Step-by-step explanation
The shaded area represents a segment. This can be solved with the formula below;
![\mleft((\theta)/(360)\mright)*\pi r^2-(1)/(2)r^2sin\theta](https://img.qammunity.org/2023/formulas/mathematics/college/jltn0irz1eyku11wkgksmzzpzf3rn9t0ly.png)
Since the triangle is an equilateral triangle, it implies that the angle subtended at the centre is 60 degrees. Also, the given radius is 7 cm
![\begin{gathered} =7^2((60)/(360)*3.14-(1)/(2)*\sin 60)^{}_{} \\ =49((3.14)/(6)-\frac{\sqrt[]{3}}{4}) \\ =4.43\operatorname{cm}^2 \end{gathered}]()
Answer:
![4..43\operatorname{cm}^2]()