Yes It Does
yes
Yes.
All regular polygons do.
There would be too many to name. All regular polygons have a line of symmetry, but there are still polygons that don't.
almost all even number of sided polygons, regular has to be
Yes they are because every polygon has at least one line of symmetry.:)
A circle (infinitely many lines of symmetry), ellipse, rectangle, and all regular polygons.
All regular polygons A polygon is symmetrical if its sides that cross the line of symmetry are halved by the line of symmetry and if the sides that do not cross the line of symmetry have the same positions in space, the same lengths, and the same angles with their neighboring sides as do the sides on the other side of the line of symmetry. The only symmetrical triangles are isosceles triangles (equilateral triangles are isosceles). The only symmetrical quadrilaterals are squares, rectangles, rhombi (the line of symmetry connects either pair of opposite corners), isosceles trapezoids, and kites.
Regular polygons.
All convex polygons have lines of symmetry. Only concave (i.e. ones with sides that cave in) do not. If you are looking for a name of a shape that has no line of symmetry, then there aren't any with specific names.
Lines of symmetry must be equal halves.