9
A polygon with 6 sides has 6 angles.
A polygon with all sides and angles the same is called a "regular polygon."
It would be an irregular polygon that has not congruent sides and angles
A polygon with four sides and four angles is a quadrilateral.
A nonagon is a polygon that has 9 sides and 9 angles
It is a nonagon
It is a nonagon which is a polygon that has 9 sides
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.
A nonagon is a 9 sided polygon having 9 interior angles
A 9-gon is a polygon with nine sides and nine angles
A polygon having 30 degree exterior angles is a dodecagon having 12 sides.
9
A polygon has the same number of sides as angles. And, this is always so, not just usually.
A polygon has as many angles as sides, so a polygon with 10 sides (decagon) would have 10 angles.
Number of sides: 360/40 equals 9 sides
A polygon with 6 sides has 6 angles.