If this 9 sided polygon is a regular polygon, then the sum of its angles is:(n - 2)180 degrees = (9 - 2)180 degrees = 7 x 180 degrees = 1,260 degrees.
Its 9 because 360 divided by 40 = 9
The internal angles of a regular nonagon (a polygon having 9 sides) are obtuse angles of 140o.
The exterior angles of any polygon add up to 360. They are 9 degrees each.
All exterior angles of any polygon sum to 360 deg. If there are 9 angles then each angle is 40 degrees.
A nonagon is a polygon that has 9 sides and 9 angles
A nonagon!
It is a nonagon
A nonagon is a 9 sided polygon having 9 interior angles
its called a nonagon.
If its a regular 9 sided polygon then the exterior angles are 40 degrees.
The number of sides of an n-sided polygon is also the number of angles of that polygon. Nonagons have 9 sides, so 9 angles.
It is a regular 9 sided polygon whose 9 interior angles add up to 1260 degrees
The number of angles on a polygon is the same number of sides the shape has.
9
It is a nonagon which is a polygon that has 9 sides
A 9-gon is a polygon with nine sides and nine angles