Table of Polygons is a great worksheet for high school level Geometry classes. Students identify patterns and use formulas to calculate the sum of the interior angles, and each interior and exterior angle of regular polygons. This is one of those worksheets I have students keep in their notebook for the entire year. Also makes a great reference handout.
This was a great little chart. I used it as a supplement to the lesson I was doing and it really does a nice job of making things clear for the students.