Octagon Interior & Exterior Angle Sum Theorems

Topic:
Angles
Directions: Mess around with the applet below for a few minutes. As you do, BE SURE TO DRAG THE PINK VERTICES around. After interacting with this applet, please answer the questions that appear below it.
Questions: 1) What can you conclude about the sum of the interior angle measures of an octagon? Explain how you came to this conclusion. 2) What can you conclude about the sum of the exterior angle measures of an octagon? Explain how you came to this conclusion.