It is a hexagon.
A Regular Polygon
1 a circle 360 interior angles 360 exterior agles
Sum of interior angles = (n-2)*180 degrees = 1080 deg So (n-2) = 1080/180 = 6 => n = 8. The polygon is, therefore, an octagon. However, there is no reason to assume that the interior angles of this polygon are all the same - they could all be different with the only constraint being their sum. IF, and that is a big if, the polygon were regular, then all its angles would be equal and each interior angle = 1080/8 = 135 degrees.
A [regular] hexagon.
120
A triangle
A Regular Polygon
A 13 sided polygon also called a triskaidecagon or tridecaogn has a total 1980 degrees for its interior angles.
If the polygon has n sides, the sum of its interior angles is 180*(n-2) degrees.
The sum of the exterior angles of all polygons equals to 360⁰.Since only the sum of the interior angles of all quadrilaterals equals to 360⁰, the polygon must have 4 sides.
2280 :S
The sum of the interior angles of any regular polygon of n sides is equal to 180(n - 2) degrees.
1 a circle 360 interior angles 360 exterior agles
Sum of interior angles = (n-2)*180 degrees = 1080 deg So (n-2) = 1080/180 = 6 => n = 8. The polygon is, therefore, an octagon. However, there is no reason to assume that the interior angles of this polygon are all the same - they could all be different with the only constraint being their sum. IF, and that is a big if, the polygon were regular, then all its angles would be equal and each interior angle = 1080/8 = 135 degrees.
A [regular] hexagon.
The sum of interior angles equals: (number of sides - 2)*180that makes: (11-2)*180 = 1620
2700⁰/180⁰ = 15 (triangles)So the polygon has 17 sides.