Question

which of them have rotational symmetry (capital alphabets AtoZ)

Answer 1

Hola !!

Here is your answer

The letters H, I, O, S, X, and Z have rotational symmetry.

Hope it helps !

Answer 2

interesting question

__________

so there are 26 letters

so to check which have rotational symmetry

they are

$\bold {h \: n \: o \: s \: z /: x \: i}$
Capital