0.5*(252-75) = 275 diagonals
Exterior angles add up to 360 degrees Interior angles add up to 4140 degrees
4,140 degrees
It is: 360/25 = 14.4 degrees
4140
4140
Exterior angle = 14.4 degrees Interior angle = 165.6 degrees
4,140 degrees, or 23 'straight' angles.
There are 275 diagonals in a 25 sided polygon
Exterior angles add up to 360 degrees Interior angles add up to 4140 degrees
25 [lots] of 360 degrees is 9000 degrees.
25 degrees = 0.44 radians.