If each angle measures 90 degrees the polygon is a square and so its angles sum to 360 degrees.
2340
77. The sum of the three angles in a triangle equal the sum of 180 degrees
15
If the exterior angle is 30o then the shape has 360/30 = 12 sides. An interior angle = 180 - exterior angle = 180 - 30 = 150. Since the shape has 12 sides the interior angles sum to 150 x 12 = 1800o.
360 degrees
180
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
360 degrees