180*(21-2) = 180*19 = 3420 degrees.
Sum of interior angles of n-sided polygon = 180n - 360 degrees. When n = 20 this gives 3240o
Sum of exterior angles = 360 degrees Sum of interior angles = 1440 degrees
The interior angles add up to 4680 degrees
The question has been asked "What is the angle sum of a thirteen sided polygon?" The answer to this question is 1980 degrees. The sum of the interior angles of a polygon of n sides = 180(n - 2)
Well honey, a 27-sided polygon has 27 interior angles. To find the sum of those angles, you use the formula (n-2) * 180, where n is the number of sides. So, for a 27-sided polygon, you'd have (27-2) * 180 = 4,860 degrees. Math doesn't lie, darling.
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 sum of what of a 92 sided polygon? The lengths of the sides? The exterior angles? The interior angles?
The sum of the interior angles of an n-sided polygon is 180n - 360 degrees.
The sum of the interior angles of a polygon with n sides is 180o × (n - 2), consequently the sum of the interior angles of a 28-sided polygon is 4680o (180o × 26).
The interior angles of an 11 sided polygon add up to 1620 degrees
Any 7-sided polygon will do that for you.
It is a 15 sided polygon
The 3 interior angles of a 3 sided polygon which is a triangle add up to 180 degrees.
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 angle of a 7 sided regular polygon is 128.57 degrees