The sum of the interior angles of any regular polygon of n sides is equal to 180(n - 2) degrees.
1440 degrees
1440
The exterior angles of any polygon add up to 360 degrees including a 10 sided regular decagon of which each exterior angle will measure 360/10 = 36 degrees.
Any angle that you like. There are no constraints on a single angle of a decagon, only on their sum.
Interior angles add up to 1440 degrees Each interior angle of a regular decagon measures 144 degrees
Each interior angle measures 144 degrees
36
Each exterior angle measures 36 degrees and the 10 exterior angles add up to 360 degrees.
1440
1440
The exterior angles of any polygon always add up to 360 degrees
Each interior angle of a regular 10 sided decagon measures 144 degrees
The exterior angles of any polygon add up to 360 degrees including a 10 sided regular decagon of which each exterior angle will measure 360/10 = 36 degrees.
The sum of the exterior angles in any polygon is 360 degrees.Therefore that polygon is a decagon.
Add each side of the decagon, or all ten sides, to get the sum.
1440 degrees
Any angle that you like. There are no constraints on a single angle of a decagon, only on their sum.
144˚