1800 degrees (that is the sum of the internal angles of the 12-sided polygon).
2340 degrees would be in a 16 sided polygon.
The sum of the exterior angles of a polygon, however many sides it has, is 360 degrees. If the 20 sided polygon is regular, its angles are equal, and each is then 360/20 = 18 degrees.
180
106
There are 720 degrees in a 6 sided polygon.
The degrees in a 19 sided polygon add up to 3,060 degrees
Providing that it is a regular 18 sided polygon each interior angle measures 160 degrees.
The interior angles of a fifteen sided polygon amount to 2340 degrees.
If its a regular polygon and each inside angle is 120 degrees then it is a 6 sided hexagon
The interior angles of a 13 sided polygon add up to 1980 degrees
1800 degrees (that is the sum of the internal angles of the 12-sided polygon).
2340 degrees would be in a 16 sided polygon.
If the 135-degree polygon is a regular polygon and each interior angle measures 135 degrees then the polygon is an eight-sided octagon
The sum of the exterior angles of a polygon, however many sides it has, is 360 degrees. If the 20 sided polygon is regular, its angles are equal, and each is then 360/20 = 18 degrees.
1,440 Degrees
700