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

(a) a vertical mirror

(b) a horizontal mirror

(c) both horizontal and vertical mirrors

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(a) Vertical mirror – A, H, I, M, O, T, U, V, W, X and Y

(b) Horizontal mirror – B, C, D, E, H, I, O and X

(c) Both horizontal and vertical mirror – H, I, O and X

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