none
Parrallelogram (it has rotational symmetry but no lines of symmetry)
A parallelogram has rotational symmetry of order 2.
A nephroid has 2 lines of symmetry.
It has 2 lines of symmetry.
none
In general, none.
Most shapes do not have lines of symmetry so why should it come as a surprise that a parallelogram has none?
Parrallelogram (it has rotational symmetry but no lines of symmetry)
A parallelogram has rotational symmetry of order 2.
parrallelogram
A nephroid has 2 lines of symmetry.
it has five lines of symmetry
2 lines OF SYMMETRY
10 lines of symmetry
4 Lines of symmetry
2 lines of symmetry