The interior angles add up to 1800 degrees
The sum of the interior angles of a 12 sided polygon add up to 1800 degrees.
The interior angles of an 11 sided polygon add up to 1620 degrees
The interior angles add up to 12,240 degrees
The interior angles of a 12 sided polygon add up to: (12-2)*180 = 1800 degrees
Interior angles total 2520 degrees
3240o
A 13 sided regular polygon
The interiior angles of a 15 sided polygon add up to 2340 degrees
The angles in a 15 sided polygon add up to 2340 degrees
If the interior angles add up to 1800 degrees then it is a 12 sided polygon.
2520 degrees
they add up to 180 degrees.