Priya folds a square sheet along its diagonal, then folds the triangle along the dotted line so that a flap (darker) covers part of it. Two holes are punched, one on the flap and one off it. Which figure shows the opened sheet?

Question

Accepted Answer

(d). The hole on the flap goes through 4 layers: a pair mirrored in the vertical crease, then mirrored again in the diagonal (4 holes). The hole off the flap goes through only the 2 layers of the diagonal fold (2 holes). So 6 holes, not 8: (d).

Priya folds a square sheet along its diagonal, then folds the triangle along the dotted line so that a flap (darker) covers part of it. Two holes are punched, one on the flap and one off it. Which figure shows the opened sheet?

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