A paper is folded in half horizontally. A small semicircle cut from the folded edge. What pattern appears when unfolded?
A semicircle cut on a horizontal fold creates a full circle when unfolded.
Question 13
A paper is folded first vertically, then horizontally. Then a small triangle cut from the folded corner. What pattern appears when unfolded?
Two perpendicular folds create 4 layers. A cut through all layers appears in all 4 quadrants.
Question 14
A paper is folded first vertically, then horizontally. Then a small triangle cut from the folded corner. What pattern appears when unfolded?
Two perpendicular folds create 4 layers. A cut through all layers appears in all 4 quadrants.
Question 15
This unfolded pattern shows holes at [(30, 40), (70, 40)]. How was the paper folded before the hole was punched?
Two horizontally aligned holes indicate a vertical fold.
Question 16
A paper is folded in half vertically. A L-shaped cut from the folded edge. What pattern appears when unfolded?
An L-shaped cut on a vertical fold creates two mirrored L-shapes.
Question 17
This unfolded pattern shows holes at [(30, 40), (70, 40)]. How was the paper folded before the hole was punched?
Two horizontally aligned holes indicate a vertical fold.
Question 18
A paper is folded twice (quarter fold). A hole is punched at position (25, 25). What pattern appears when unfolded?
Hole Punch Symmetry - Quarter Fold
Step 1: Paper folded horizontally then vertically creates 4 layers. Step 2: A hole punched at (25,25) goes through all 4 layers. Step 3: When unfolded, the hole appears in all 4 quadrants. Result: Four holes forming a square pattern.
Question 19
A paper is folded in half horizontally. A small semicircle cut from the folded edge. What pattern appears when unfolded?
A semicircle cut on a horizontal fold creates a full circle when unfolded.
Question 20
A paper is folded with 4-fold rotational symmetry (pinwheel fold). A hole is punched near one edge. What pattern appears when unfolded?