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.
To find the degrees in a decagon, measure an angle. One angle is 144 degrees. Then, since there are 10 sides, multiply 144 with 10. Your answer would be 1440 degrees. Therefore, the degrees in a decagon is 1440 degrees.