Question

Find the number of letters (upper case) in the English alphabet that have rotational symmetry.

• A. 8
• B. 7
• C. 6
• D. 5

Answer 1

The correct option is B 7

When we rotate H by an angle of ${180}^{\circ }$ as shown below, we get the same figure, hence it has rotational symmetry.



Similarly, the other letters that have rotational symmetry are:
I, N, O, S, X, Z
Hence the total number of letters (upper case) in the English alphabet that have rotational symmetry is 7.