Question

Find the area of the segment

Answer 1

`\bf \begin{array}{llll} \textit{area of the}\\ \textit{segment of a circle} \end{array}=\cfrac{r^2}{2}\left( \cfrac{\pi \theta}{180}\ - \ sin(\theta) \right)\qquad \begin{cases} r=radius\\ \theta=\textit{angle in degrees} \end{cases}`

when taking the sine, make sure your calculator is in Degree mode, as opposed
to Radian mode, since the angle in this case, is in degrees