Since a three sided polygon is another name for a triangle.
We would use the formula of
* (n - 2)180 = degrees of the polygon
* n = number of sides of the polygon
* (3(sides) - 2)180 * (1)180) * = 180o
The interior angles of a 7 sided polygon add up to 900 degrees
The degrees in a 19 sided polygon add up to 3,060 degrees
An 8 sided polygon is an octagon and has exterior angles that add up to 360 degrees and its interior angles add up to 1080 degrees
The interior angles of a 7 sided polygon add up to 900 degrees
The interior angles of an 11 sided polygon add up to 1620 degrees
The 3 interior angles of a 3 sided polygon which is a triangle add up to 180 degrees.
The interior angles of a 7 sided polygon add up to 900 degrees
A three-sided polygon is a triangle. The angles in a triangle add up to 180 degrees.
The degrees in a 19 sided polygon add up to 3,060 degrees
An 8 sided polygon is an octagon and has exterior angles that add up to 360 degrees and its interior angles add up to 1080 degrees
The interior angles of a 13 sided polygon add up to 1980 degrees
The interior angles of a 7 sided polygon add up to 900 degrees
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
They add up to 1080 degrees
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 a 20 sided polygon add up to 3240 degrees