All regular ones do.
Lines of symmetry must be equal halves.
Regular polygons.
ractangle
squares and rectangles
rectangles
Lines of symmetry in polygons are not necessarily diagonals. A line of symmetry divides a shape into two identical halves, while a diagonal connects non-adjacent vertices of a polygon. In some cases, a diagonal can serve as a line of symmetry, but this is not true for all polygons. Therefore, while there can be overlap, the two concepts are distinct and not synonymous.
Polygons that have only two lines of symmetry include the rectangle, the isosceles triangle, and the kite. A rectangle has vertical and horizontal lines of symmetry, while an isosceles triangle has a single line of symmetry through its vertex. A kite has two lines of symmetry that intersect at its center. Each of these shapes exhibits symmetry in a limited manner compared to more symmetric polygons like squares or equilateral triangles.
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.
A circle (infinitely many lines of symmetry), ellipse, rectangle, and all regular polygons.
Providing that it is a regular 9 sided nonagon it will have 9 lines of symmetry
It could but not all of them .if this is not the answer you are looking for then i am so sorry. :( A polygon CAN have 5 lines of symmetry or more, such as a pentagon, hexagon or an octagon, etc. however, polygons like the square or triangle don't have 5 lines of symmetry.
A polygon that has four lines of symmetry is a square. The lines of symmetry in a square include two diagonal lines and two lines that bisect the sides vertically and horizontally. Other polygons, such as the rectangle (not a square) and certain types of rhombuses, can also have four lines of symmetry, depending on their specific dimensions and angles. However, the square is the most common example of a polygon with exactly four lines of symmetry.