There are infinitely many axes of symmetry in mathematics.
a rectangle has 2 axes of symmetry
It has 5 axes of symmetry
A square has 4 axes of symmetry.
Anything from none to 8.
It can certainly have 0, 1, 2 or 6 lines of symmetry.
A regular pentagon has five axes of symmetry.
It can have 1 or 6. Not sure about 3.
An isosceles triangle definitely has three axes of symmetry
Not sure about a duodecagon, but a regular dodecagon has 12 axes of symmetry.
A polygon need not have any axes of symmetry. It can have at most n axes where n is the number of sides that the polygon has.
2 axes from angles to angles