A circular sheet is folded exactly along a diameter into a semicircle. A hole is punched away from the fold and the curved edge. How many holes appear when unfolded?

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Answer: A. 2

Folding the circle along its diameter creates 2 overlapping layers of paper. Because the hole is punched away from the fold and edges, it pierces completely through both layers without merging. Unfolding the sheet reveals 1 original hole and 1 symmetrical reflection across the diameter line.

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A circular sheet is folded exactly along a diameter into a semicircle. A hole is punched away from the fold and the curved edge. How many holes appear when unfolded?

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