
The letters of the alphabet that have vertical and/or horizontal lines of reflection.

Answer to Problem 28PPS
Capital letters that have vertical lines of reflection: A, H, I, M, O, T, U, V, W, X, Y.
Capital letters that have horizontal lines of reflection: B, C, D, E, H, I, K, O, X.
Explanation of Solution
Given:
The objects are the alphabets.
Calculation:
A reflection is a transformation over a line.
Every point in the pre-image and the reflected image are at the equal distance from the line of reflection.
Capital letters that have vertical lines of reflection: A, H, I, M, O, T, U, V, W, X, Y.
Capital letters that have horizontal lines of reflection: B, C, D, E, H, I, K, O, X.
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