Within the boundaries of Rocky Mountain National Park, more than 100 peaks rise above 11,000 feet in altitude, including Longs Peak at 14,259 feet. These amazing mountains cradle the Estes Valley, providing residents and guests with incredible beauty and inspiration.
Hexagon: 720. Heptagon: 900. In general: n-agon: (n-2) * 180. With seven angles in a heptagon, each angle is 128.581427... degrees. The total is 900 degrees. Despite what others have posted here, the answer is *not* 360 degrees in every polygon. Even if you don't know the right answer for a heptagon, intuitively you know that a triangle is 180, a square is 360.
We could divide both sides by 180 degrees, and we could get pi radians over 180 degrees is equal to one, which is just another way of saying that there are pi radians for every 180 degrees, or you could say, pi over 180 radians per degree. The other option, you could divide both sides of this by pi radians. You could say, you would get on the left hand side you'd get one, and you would also get, on the right hand side, you would get 180 degrees for every pi radians. Or you could interpret this as 180 over pi degrees per radian.