Any angle that you like. It is only if the shape is regular that you can make any more precise statements.
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2160 degrees
The sum of the interior angles of a 14 sided polygon are 2160 degrees.
The interior angles of a 14 sided polygon add up to 2160 degrees
A 14 sided shape is called a Tetradecagon.
The exterior angles of a 14 sided polygon add up to 360 degrees
2160 degrees
The 14 interior angles add up to 2160 degrees
The sum of the interior angles of a 14-agon add uo to 2160 degrees
The 14 interior angles add up to 2160 degrees
The sum of the interior angles of a 14 sided polygon are 2160 degrees.
The interior angles of a 14 sided polygon add up to 2160 degrees
Two methods :_ 1) The sum of the interior angles of a regular polygon is 2n - 4 right angles. For a 14 sided polygon then (2 x 14) - 4 = 24 right angles = 24 x 90 = 2160° Therefore each interior angle = 2160 ÷ 14 = 154.29° (2dp) 2) The external angle of a 14 sided regular polygon = 360 ÷ 14 = 25.71° The interior angle = 180 - external angle = 180 - 25.71 = 154.29°
1260 degrees is 14 right angles. The interior angles of an n-sided polygon always total 2n - 4 right angles. In this case 2n - 4 = 14 so n = 9, its an enneagon!
The sum of the interior angles of a polygon with n sides is (n-2)*180 degrees = 14*180 = 2520 deg
To find it, one must divide it by 360. So the figure results to be a 14-sided shape.
The sum of the internal angles of a regular polygon with n sides is (n - 2) x 180 degrees. Therefore, the sum of the internal angles of a 14-sided shape (a tetrakaidecagon) is (14 - 2) x 180 = 2160 degrees.
On the basis that you are familiar with terms such as "tetrakaidecagon" I assume you are mathematically at a stage where angles are measured in radians and not degrees. Then the interior angles of a 14 sided polygon sum to (14-2)*pi radians or 12*pi radians.