It depends on the font. But l, o, s, x, z, H, I, N, O, S, X and Z.
no
it means that if you are looking at a shape of a triangle then will it be able to go upside down looking the same way? well no it wont the point was on top not on the bottum right?
parell lines
H, I, O, and X have rotational symmetry.
There are 10 letters in the alphabet that achieve rotational symmetry when displayed in their capital form. These letters: A, H, I, M, O, U, V, W, X, and Y.
Mississippi
2
I, H, N, O, S, X & Z all have rotational symmetry.
Bilaterally
The letters H and Z have both line symmetry and rotational symmetry
A figure has rotational symmetry when it can rotate onto itself in less than a full rotation.
7 have rot