The interior angles of a polygon are (number of side -2)*180 = sum of angles
The interior angles of a 14 sided polygon add up to 2160 degrees.
That's true of any polygon with four sides.
It depends on what type of polygon it is and how many angles it has.
Yes, a pentagon is a polygon, whatever the measures of its angles.
There are 5 interior angles and each one measures 108 degrees (180-72). Since the sum of exterior angles of any polygon is 360⁰, then that polygon would have 5 angles (360/72). So the sum of interior angle measures is 540⁰.
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 interior angles add up to 2340 degrees
The interior angles add up to 1800 degrees