If it's a regular 9 sided nonagon then each exterior angle measures 40 degrees because the exterior angles of any polygon add up to 360 degrees and 360/9 = 40 degrees
If it was an irregular nonagon then the exterior angles would vary but they still would add up to 360 degrees
The exterior angle will be: 360/8 = 45 degrees
12 sided regular polygon.
Each angle for a regular nonagon is 140 degrees each.
140 degrees
Providing that it is a regular nonagon then each exterior angle measures 40 degrees and each interior angle measures 140 degrees
The exterior angles of a nonagon add up to 360 degrees.
140
1260
It is called a Nonagon
1260
The measure of an interior angle of a regular nonagon is 140o. This is found in any polygon by multiplying 2 less than the number of sides by 180o and then dividing the product by the number of sides. A nonagon interior angle is then 7 x 180o/9 = 140o.
The internal angles of a regular nonagon (a polygon having 9 sides) are obtuse angles of 140o.