The sum of each pair of interior and exterior angles of a polygon is always 180 degrees.
I think its this.... Find the interior. Then do 180 - the interior. That is the exterior. * * * * * The correct answer is that the sum of the exterior angles of any polygon is always 360 degrees.
Sum of the exterior angles is 360 degrees. So the sum of the interior angles must be 3*360 = 1080 degrees.
Actually, no. The sum of the exterior angles of a triangle is 360 degrees. The sum of the interior angles of a triangle is 180 degrees.
The exterior angle of a triangle is equal to the sum of the two opposite interior angles. So if a triangle had points A, B and C: The exterior angle at B would equal the sum of interior angles at A and C. Similarly, the exterior angle at C would equal the sum of interior angles at A and B And the the exterior angle at A would equal the sum of interior angles at C and B.
-- The sum of the four exterior angles is 360 degrees. -- The sum of the four interior angles is also 360 degrees. -- So the sum of all the interior and exterior angles is 720 degrees.
For interior, the angle sum is 540 degrees, for exterior, the angle sum is 1260 degrees. * * * * * Partially correct! The sum of the exterior angles of any polygon is 360 degrees. The exterior angle is the supplement of the interior angle (180 - interior), NOT the reflex angle (360- interior). So the sum given 1260, which is based on the reflex angles is incorrect.
Looking at the related link, you will see that an exterior angle of 90° will result in an interior angle of 90°. Since it's regular, and all the angles are 90°, the only possibility is a square. So the sum of interior angles is 360°
Interior is 120 degrees Exterior is 60 degrees.
The interior and exterior angles add up to 180.
The interior and exterior angles add up to 180.
The 4 interior angles of the square will add up to 360 degrees