It depends on what type of polygon.
10 lines. Regular polygon of "x" sides has "x" Lines of Symmetry
A 15 sided polygon has 15 lines of symmetry;) Thanks for asking:)
It has 32 lines of symmetry.
A regular Undegon (11 sided polygon) has 11 lines of symmetry. It also has an order of rotation symmetry of 11.
A regular polygon with 32 sides has 32 lines of symmetry. Each line of symmetry passes through a vertex and the midpoint of the opposite side or through the midpoints of two opposite sides. This symmetry results from the equal length and angles of all sides and vertices in the polygon.
A polygon need not have any lines of symmetry. The maximum number of lines of symmetry is attained if the polygon is regular; and this is the number of sides (or vertices) of the polygon. If a regular polygon has an even number of sides, then the lines of symmetry are those joining opposite vertices, and those joining the mid-points of opposite sides. If the polygon has an odd number of sides/vertices, the lines of symmetry are those joining each vertex to the mid-point of the opposite side.
A regular 24 sided polygon has 24 lines of symmetry.
36
20
It will have 22 lines of symmetry
Well, honey, a regular polygon with 20 sides has 20 lines of symmetry. Each line of symmetry divides the polygon into two equal halves, like splitting a cake. So, if you're looking for balance in your life, just remember that 20 is the magic number for this polygon.
It depends on how many sides the polygon has: An octogon has 8 lines of symmetry, a pentagon has 5......