One.
None, since the letter "e" does not have any symmetry.
Only one.
1
In a capital latter E, there is only 1 line of symmetry horizontally accros the middle.
only 1
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