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GATE 2021 CS (CS2) – Question 7

General Aptitude · Spatial Aptitude: Spatial Reasoning and Visualization · 2 marks · Multiple choice

A jigsaw has two pieces. One is shown above the four candidate missing pieces. The pieces may be translated, rotated or flipped. Which missing piece forms a rectangle with the given piece?

Diagram for GATE 2021 CS (CS2) question 7
  1. Option A in the figure
  2. Option B in the figure
  3. Option C in the figure
  4. Option D in the figure

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Show answer and explanation

Correct answer: (A) Option A in the figure

Explanation

Trace the full stepped boundary of the supplied piece, including its narrow notches. Rotate the candidate boundary to face it and match protrusions to recesses in order. A supplies the complementary sequence and widths along the entire join, leaving a rectangular outside boundary. The other choices mismatch at least one step or notch.

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