Question

An arc of length 3 feet is cut off by a central angle of π/4 radians. Find the area of the sector formed

Answer 1

so hmm notice the picture below

so
`\bf \textit{area of a sector of a circle}\\\\ A=\cfrac{s^2}{2\theta}\qquad \begin{cases} \theta=\textit{central angle in radians}\\ s=\textit{length of the arc} \end{cases}`