Chapter 14.8, Problem 7WE

To determine

To find which capital letters have a point symmetry.

Answer to Problem 7WE

The capital letters with a point symmetry areH, I, N, O, S, X, and Z.

Explanation of Solution

Each symmetry has center O and rotates the figure onto itself. Note that $90°$ rotational symmetry is another name for point symmetry.

It can be concluded that the capital lettershave a point symmetry as this rotate, it’s the same up and down.

Therefore, the capital letters with a point symmetry are H, I, N, O, S, X, and Z.