GATE EE 2021 Set 1 — Question 2

MCQ+1 / -0.33EasyPaper Folding, Cutting & PatternsSpatial AptitudeGeneral Aptitude

General Aptitude → Spatial Aptitude → Paper Folding, Cutting & Patterns

Last updated 5 September 2026

Question

A transparent square sheet shown above is folded along the dotted line. The folded sheet will look like_______________.

Correct answer (C) [figure] Solution Folding along the dotted line brings the right half over onto the left half. Every mark that lies to the left of the dotted line stays where it is; every part of a line that lies to the right of the dotted line is mirrored across the fold. The vertical line lies wholly in the left half, so it is unchanged. The two slanted lines start at the midpoint of the vertical line and cross the dotted line. Their left-hand portions (from the vertical line up to the fold) stay as they are. Their right-hand portions (from the fold to their free ends) are reflected: each now starts at the same crossing point on the fold but runs back towards the left, sloping the opposite way. The upper portion, which rose to the right, now rises to the left and reaches back towards the top of the vertical line; the lower portion, which fell to the right, now falls to the left towards the bottom of the vertical line. Together with the unchanged left-hand portions, these reflected segments form two triangles pointing at the fold, stacked one above the other on the vertical line, while the right half of the folded sheet is blank. This is the figure in option (C). Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (C) [figure] Solution Folding along the dotted line brings the right half over onto the left half. Every mark that lies to the left of the dotted line stays where it is; every part of a line that lies to the right of the dotted line is mirrored across the fold. The vertical line lies wholly in the left half, so it is unchanged. The two slanted lines start at the midpoint of the vertical line and cross the dotted line. Their left-hand portions (from the vertical line up to the fold) stay as they are. Their right-hand portions (from the fold to their free ends) are reflected: each now starts at the same crossing point on the fold but runs back towards the left, sloping the opposite way. The upper portion, which rose to the right, now rises to the left and reaches back towards the top of the vertical line; the lower portion, which fell to the right, now falls to the left towards the bottom of the vertical line. Together with the unchanged left-hand portions, these reflected segments form two triangles pointing at the fold, stacked one above the other on the vertical line, while the right half of the folded sheet is blank. This is the figure in option (C).

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