The sum of the interior angles of a 13 sided polygon add up to 1980 degrees because (13-2)*180 = 1980 degrees
for a polygon the sum of interior angels = (n-2) × 180°, where n is number of sides. Accordingly, for n = 13 the sum of angles equals (13 - 2) x 180 =1980
Remember the two equations. Exterior angle = 360 / no. of sides. Interior angle = 180 - exterior angle. So for 102 sided polygon. exterior angle = 360/102 = 3.5294... Interior angle = 180 - 3.5294... = 176.4706.... Hence sum of the 102 sided polygon's angles is 102 X 176.4706 = 18,000 degrees. ( to nearest degree).
The interior angles of an 11 sided polygon add up to 1620 degrees
The sum of the interior angles of a four-sided polygon is 360 degrees.
The sum of the interior angles of a 12 sided polygon add up to 1800 degrees.
The 13 interior angles of a 13 sided polygon add up to 1,980 degrees
The interior angles of a 17 sided polygon add up to 2700 degrees
The 3 interior angles of a 3 sided polygon which is a triangle add up to 180 degrees.
the interior angle of a 7 sided regular polygon is 128.57 degrees
The sum of what of a 92 sided polygon? The lengths of the sides? The exterior angles? The interior angles?
The interior angles of a 20 sided polygon add up to 3240 degrees
The interior angles of a 19 sided polygon add up to 3060 degrees
A 39 sided polygon