After folding the sheet along the dotted line, which option image will appear?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) →
When the lower half is folded up along the dotted line, the upper half stays where it is and the lower curve lands on its mirror position above the line. The lower curve bulges to the right, so its image also bulges to the right; together with the upper curve, which bulges to the left, it closes into a ring.
