Sum = 1440°
Each interior angle = 144°
Each exterior angle = 36°
Explanation:
6) Sum of interior angles = 180(n - 2)°
where n = number of sides
For a decagon, the number of sides = 10
The sum of interior angles = 180(10 -2)
The sum of interior angles = 180(8) = 1440°
Each interior angle = The sum of interior angles/ number of sides
Each interior angle = 1440/10 = 144°
Sum of Exterior angles of a polygon = 360°
Each exterior angle = Sum of Exterior angles of a polygon/ number of sides
Each exterior angle = 360/10
Each exterior angle = 36°
