Answer
a. $8\pi m \approx 25.13m$
b. $\frac{55}{9}\pi m \approx 19.20m$
Work Step by Step
a.
$r = 10m$
$\theta = \frac{4\pi}{5}$
$s = r\theta = 10m*\frac{4\pi}{5}=8\pi m \approx 25.13m$
b.
$r = 10m$
$\theta = 110^\circ = \frac{110^\circ}{180^\circ}\pi=\frac{11}{18}\pi$
$s = r\theta = 10m*\frac{11}{18}\pi=\frac{55}{9}\pi m \approx 19.20m$
