Yes It Does
yes
All regular polygons do.
almost all even number of sided polygons, regular has to be
There would be too many to name. All regular polygons have a line of symmetry, but there are still polygons that don't.
Regular polygons.
A circle (infinitely many lines of symmetry), ellipse, rectangle, and all regular polygons.
yes
no
yes
Not all polygons have point symmetry. A polygon exhibits point symmetry if for every point in the shape, there is another point at an equal distance in the opposite direction from a central point. Regular polygons, like squares or equilateral triangles, possess point symmetry, but irregular polygons may not. Thus, only certain types of polygons, particularly regular ones, can be said to have point symmetry.
Yes.
All regular ones do.