How do you find out the exterior angles in a polygon?
360 / n (number of sides)
How do you find out the interior angles in a polygon?
180(n-2) n=number of sides
What does the interior and exterior angles add up to?
180
Why do the interior and exterior angles add u to 180?
Because they’re on a straight line
Example: Pentagon
Exterior = 360 / 5 = 72
Interior = 180 (5-2) = 540
Each angle = 540 / 5 = 108
Interior + Exterior = 108 + 72 = 180