They add up to 1080 degrees
The interior angles of a 23 sided polygon add up to 3780 degrees
If the interior angles add up to 1800 degrees then it is a 12 sided polygon.
The interior angles of a 16 sided polygon add up to 2520 degrees If it's a regular polygon then each interior angle measures 157.5 degrees
A 10 sided polygon or a decagon has interior angles that add up to 1440 degrees
A triangle is a 3 sided polygon that has 3 interior angles that add up to 180 degrees
The interior angles of a 7 sided polygon add up to 900 degrees
The interior angles of an 11 sided polygon add up to 1620 degrees
The 3 interior angles of a 3 sided polygon which is a triangle add up to 180 degrees.
The interior angles of a 17 sided polygon add up to 2700 degrees
The 13 interior angles of a 13 sided polygon add up to 1,980 degrees
The sum of the interior angles of a 12 sided polygon add up to 1800 degrees.
The interior angles of a 19 sided polygon add up to 3060 degrees
The interior angles of a 20 sided polygon add up to 3240 degrees
The interior angles add up to 3240 degrees
The interior angles of an 8 sided octagon add up to 1080 degrees
The interior angles of an 11 sided polygon add up to 1620 degrees
The interior angles of a 20 sided polygon add up to 3240 degrees