
A regular polygon has 9 sides. What is the degree measure of the angle, within the polygon, between any two sides?
First, you must figure the sum of the measures of the internal angles, which is equal to (n2)180 or (92)180 = 7 * 180. Then, you should divide this measure by the number of sides to find the length of each angle. Sorry, but this feature does not work in your country because it is blocked by your country's firewall. 