There are 0 lines of symmetry in a parallelogram.
none
In general, none.
Parrallelogram (it has rotational symmetry but no lines of symmetry)
A parallelogram has rotational symmetry of order 2.
parrallelogram
2 lines of symmetry
A nephroid has 2 lines of symmetry.
it has five lines of symmetry
Equilateral Triangles (3 lines of symmetry)Rectangles (at least 2 lines of symmetry)Squares (4 lines of symmetry)Rhombuses (at least 2 lines of symmetry)Any regular polygon (at least 5 lines of symmetry)
it has no lines of symmetry
A parallelagram can be a square, which has four lines of symmetry or a rectangle which has two lines of symmetry but the generic parallelagram has zero lines of symmetry