Question

7 ? Find the arc length of the partial circle. Either enter an exact answer in terms of or use 3.14 for 7 and enter your answer as a decimal.

Answer 1

The arc length is given by:

$\begin{gathered} L=r\theta \\ \text{Where:} \\ r=radius=7 \\ \theta=\text{angle (in radians)}=\frac{\pi}{2} \\ L=\frac{7\pi}{2}\approx10.99557429 \end{gathered}$