It depends on the nature of the irregularities. If you have an octagon where each alternate side is equal then you can have 8 lines of symmetry.
five lines of symmetry :)
It can have as many lines of symmetry as it has points.
5
6
There could be none, there could be 5.
it has five lines of symmetry
five lines of symmetry :)
A 5 point star has 5 lines of symmetry.
It can have as many lines of symmetry as it has points.
it has four lines of symmetry
5
simply six
6
A star.
5
5
There could be none, there could be 5.