1800 degrees (that is the sum of the internal angles of the 12-sided polygon).
The sum of the interior angles of a 12 sided polygon add up to 1800 degrees.
The interior angles of a 12 sided polygon add up to: (12-2)*180 = 1800 degrees
A 12 sided polygon is a dodecagon
All polygons have the same number of sides as angles. So if there are 12 sides, thereare 12 angles.
Exterior angles = 360 degrees Interior angles = 1800 degrees
Degrees are used to measure angles, not the lengths of sides.
1800 degrees
The interior angles add up to 1800 degrees
The interior angles of a 12 sided polygon add up to 1800 degrees
If the 12-sided polygon is 'regular', then each of its exterior angles is 30 degrees. Whether the polygon is regular or not, all 12 of its exterior angles still add up to 360 degrees, but they may not all be equal.
The name of a 12 sided polygon is Dodecagon.