360 degrees
180
1440 degrees
1260 degrees
1440 degrees
360 degrees
exterior angle theorem
180
Theorem 6-1-2; Polygon Exterior Angle Sum Theorem:The sum of the exterior angle measures, one angle at each vertex, of a convex polygon is 360 degrees.
180
The sum of the angles should equal 180
1440 degrees
1260 degrees
1440 degrees
360
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.
1800 degrees