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Mathematics Question on Lines Of Symmetry For Regular Polygons

What letters of the English alphabet have reflectional symmetry (i.e., symmetry related to mirror reflection) about.

  1. a vertical mirror
  2. a horizontal mirror
  3. both horizontal and vertical mirrors
Answer

(a) A, H, I, M, O, T, U, V, W, X, Y are the letters having a reflectional symmetry about a vertical mirror.
A, H, I, M, O, T, U, V, W, X, Y are the letters having a reflectional symmetry

(b) B, C, D, E, H, I, K, O, X are the letters having a reflectional symmetry about a horizontal mirror
B, C, D, E, H, I, K, O, X are the letters having a reflectional symmetry

(c) H, I, O, X are the letters having a reflectional symmetry about both the vertical mirror and the horizontal mirror.
H, I, O, X are the letters having a reflectional symmetry