Aisha was making a poster for her CCA at her HDB block's common space. She drew the capital letter shown below. How many lines of symmetry does this letter have?
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Worked Solution
Step 1: A line of symmetry is a fold line where the two halves match exactly when folded.
Step 2: Test the VERTICAL line down the middle of H. Folding left onto right, the two vertical strokes match, and the cross-bar matches itself. Vertical = line of symmetry. ✓
Step 3: Test the HORIZONTAL line through the middle of H. Folding top onto bottom, the upper halves of the two vertical strokes match the lower halves, and the cross-bar maps to itself. Horizontal = line of symmetry. ✓
Step 4: Test the two DIAGONAL lines. Folding along either diagonal, the cross-bar of H does not map onto a matching stroke. Diagonals = NOT lines of symmetry.
Final answer: H has 2 lines of symmetry (vertical and horizontal).
Answer: 2
Correct answer: 2
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