This is for my Geometry.
1. A circle graph has a section marked "Potatoes: 28%." What is the measure of the central angle of this section?
28% of 360 degrees
2)
http://img9.imageshack.us/img9/5614/...aaaaaaazh4.png
Find the measure of arc YW.
Find the measure of arc WXS.
arc length, $\displaystyle s = r\theta$ , where $\displaystyle \theta$ = central angle in radians
arc YW = $\displaystyle 30^{\circ} = \frac{\pi}{6} \, rad$
$\displaystyle s = 27 \cdot \frac{\pi}{6} = \frac{9\pi}{2} \approx 14.1 \, in.$
you find the measure of arc WXS