An upright ribbon of paper is folded into three equal parts like a fan: top third down, then bottom third up over it. A square and a round hole are punched. Which figure shows the ribbon opened?

Question

Accepted Answer

(d). The holes go through all three layers. Undo the bottom-third fold: twins mirrored into the bottom third. Undo the top-third fold: twins mirrored into the top third. Each shape appears three times as mirror images: (d).

An upright ribbon of paper is folded into three equal parts like a fan: top third down, then bottom third up over it. A square and a round hole are punched. Which figure shows the ribbon opened?

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