I am trying to make a set of images similar to this: http://petewilliamsagency.com/oldsite/css/examples/pie/slices.gif. This won't actually be used for a pie chart, but instead a more unique method of displaying percents. I can't seem to figure out how to get the angles like that in Photoshop (using CS4 if that matters). The circles are of course simple enough, and I have no problem making all of the easy 45 degree angle slices, but the smaller ones (5, 10, 15, etc) are giving me trouble.
Make a circle. Repeat until circle is filled: