Do irregular polygons have any symmetry?

Yes, irregular polygons can have symmetry, but it is not guaranteed. Symmetry in a polygon refers to the property where one half is a mirror image of the other or can be rotated and still appear the same. An irregular polygon may have some lines of symmetry or rotational symmetry, but it typically lacks the uniform symmetry seen in regular polygons. Each irregular polygon is unique, so its symmetry will vary based on its specific shape and angles.