Depending upon how regular it is between 0 and 20 (inclusive).
10 lines of symmetry
2 lines of symmetry
There are infinitely many lines of symmetry. Every line can be a line of symmetry for a suitable shape.
A TRAPIZOID has 2 lines of symmetry
There are eight lines of symmetry.
20
it has five lines of symmetry
A nephroid has 2 lines of symmetry.
10 lines of symmetry
4 Lines of symmetry
2 lines of symmetry
2 lines OF SYMMETRY
2 lines of symmetry
It has 2 lines of symmetry.
no lines of symmetry
5 lines
There is no such thing as 8 lines of symmetry. A circle, for example, has infinitely many lines of symmetry.