The sum of the interior angles is 1,800 degrees for any 12-agon,
no matter how it's shaped.
It means the sum of the angle measurements.
The interior angles of a 62-agon add up to 10,800 degrees
The interior angles of a 62-agon add up to 10,800 degrees
The interior angles of a 61-agon add up to 10620 degrees
The interior angles of a 24-agon add up to 3960 degrees.
The 20 interior angles of a regular 20-agon add up to 3240 degrees
The exterior angles add to 360 degrees. The interior angles add to (17-2)*180 = 2700 degrees.
The easiest way to calculate this is to calculate the exterior angle and use the fact that the exterior and interior angles are supplementary. Sum exterior angles = 360° → Each exterior angle of a regular 28-agon is 360° ÷ 28 → Each interior angle of a regular 28-agon = 180° - 360° ÷ 28 = 167 1/7° ≈ 167.14°
It is: 1080 - 835 = 245 degrees
Yes, if you interpret some of the exterior angles as having negative measure.
Only convex man, if the angle is concave it would not be 360 degree.
360 degrees