It will have (1980+360)/180 = 13 sides
It will have (1980+360)/180 = 13 sides
The interior angles of a 13 sided polygon add up to 1980 degrees
The sum of the measures of the exterior angles of any polygon, regular or irregular, is always 360 degrees. In a regular polygon with ten sides, each exterior angle measures 360 degrees divided by the number of sides, which in this case is 36 degrees. Therefore, the sum of the measures of the exterior angles of a regular decagon is 10 multiplied by 36 degrees, which equals 360 degrees.
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If the interior angles of a polygon add up to 1980 degrees then it has 13 sides
It will have (1980+360)/180 = 13 sides
It will have (1980+360)/180 = 13 sides
1980 degrees
13 sides
It is: (13-2)*180 = 1980 degrees
Sum of exterior angles = 360 degrees Sum of interior angles = 1980 degrees
13 * (180 - 360/13) = 1980 degrees
The interior angles of a 13 sided polygon add up to 1980 degrees
The 13 interior angles add up to 1980 degrees
1800 degrees
If each angle measures 90 degrees the polygon is a square and so its angles sum to 360 degrees.