Question 1
A 5×5 paper is folded at column 3 (right side over), then folded at row 1 (bottom over). A hole is punched through all layers. When unfolded, which pattern shows the resulting holes?
With offset folds, the hole positions are mirrored asymmetrically. The hole at position (2,3) on the folded paper creates multiple mirrored copies when unfolded.