A circle is not formed from line segments.
A polygon, but only if all the line segments are coplanar.
triangle
An angle.
Polygon and they do not cross.
A triangle.
A polygon.
polygon
A polygon.
A polygon, but only if all the line segments are coplanar.
circle
polygon
polygon
It is an angle.
triangle
An angle.
Polygon and they do not cross.
polygon