360 degrees. It is a rectangle (or square).
Hint: in a regular polygon interior plus exterior = 180o, always.
1260
360
1440 degrees
1440 degrees
1800 degrees
360
If exterior angles are 120 then interior angles must be 60 so you have an equilateral triangle
The interior angle of any regular polygon can be calculated using the formula 180 * (n - 2) / n, where n is the number of sides. In this case, since each exterior angle measures 72 degrees, the interior angle would be 180 - 72 = 108 degrees. So the measures of the interior angles in this regular polygon would be 108 degrees.
1440 degrees
540 degrees
Interior angle = 120 degrees Exterior angle = 60 degrees