(n-2)*180
In geometry, an interior angle is an angle formed by two sides of a simple polygon that share an endpoint, namely, the angle of the inner side of the polygon.
6
Subtract the interior angle from 180
The sum of the interior angles are (18-2)*180 = 2880 degrees
A polygon is a closed figure in the plane. It has an inside and an outside.The angles on the inside are the interior angles. An exterior angle is the angle between any side of the polygon and a line extended from the next side.Here is an example to help.If you draw an triangle, the angles inside it are interior angles. Then if you extend any side, the angle between that line and the next side is the exterior angle.The sum of the exteriors is always 360. For a polygon with n sides, the sum of the interior angles is 180 (n-2) degrees.
A polygon with any number of sides can have an interior angle measuring 108 degrees.
If the interior angles of a polygon add up to 1980 degrees then it has 13 sides
If the polygon is regular, the measure of one interior angle of a 24 side polygon is 165 degrees.
The exterior angle of any polygon, including a tricontakaitrigon, is the angle formed between one side of the polygon and the extension of an adjacent side. The measure of the exterior angle of a regular tricontakaitrigon is 2 degrees, as each interior angle of this polygon measures 178 degrees.
If each interior angle measures 156 degrees then it must have 15 sides
An interior or exterior angle of the polygon.
In geometry, an interior angle is an angle formed by two sides of a simple polygon that share an endpoint, namely, the angle of the inner side of the polygon.
If measured on the inside of the polygon, the it is an interior angle.
An exterior angle of a polygon is the supplement of the corresponding interior angle. The exterior angle is the angle between an extended sides of the polygon and the next side of the polygon.
Extending a line past a side of the polygon, and measuring the angle between the adjacent side and the line. This angle will equal 180°-(interior angle). Below, I've tried to illustrate it, where x is the exterior angle, and i is the interior angle: x\ i __\_______/
6
The sum of the interior angles is 180(11-2)=1620 now since there are 11 of these each interior angle has measure 1620/11 or 147.273 degrees