What is the area of the following figure? The radius is meters.
12$\pi$
4$\pi$
16$\pi$
13$\pi$
12$\pi ^{2}$
If the radius is 15, and the central angle is $\frac{\pi}{23}$ find the arc length.
$\frac{23 \pi}{15}$
$\frac{\pi}{23} + 15$
$\frac{15 \pi}{23}$
$\frac{345}{\pi}$
225
