The interior angles of a 17 sided polygon add up to 2700 degrees
If it's a regular polygon then each interior angle measures 120 degrees.
The interior angles of a 14 sided polygon add up to 2160 degrees.
The interior angles add up to 3240 degrees
The interior angles add up to 2340 degrees
The interior angles add up to 1800 degrees
If each angle measures 90 degrees the polygon is a square and so its angles sum to 360 degrees.
A 13 sided polygon interior angles add up to 1980 degrees
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.