The fall of the Western Roman Empire typically. represents the beginning of the Middle Ages. Scholars divide the Middle Ages into. three eras: the Early Middle Ages (4 00â1000), the High Middle Ages (1 000â1300), and. the Late Middle Ages (1 300â1500).
For any triangle it is universal truth that addition of all three angles will be one eighty degree (1800). Mathematically, it can be expressed as: â p + â q + â r = 180Â°, If we are given two angles out of three then substituting these values, one angle can be calculated using above formula.
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.