Exterior angles add up to 360 degrees
Interior angles add up to 180 degrees
360 degrees
180
35
360
180
360 degrees
180
The sum of the angles in a triangle is 180 degrees.
720
360
35
360
180
The sum of the measures of the angles in a figure having 9 sides is 20 degrees each angle.
Sum= 2340 Degrees A+
1,080
supplementary