GATE 2022 IN – Question 10
Which one of the following sets of pieces can be assembled to form a square with a single round hole near the center? Pieces cannot overlap.

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Correct answer: (C) Set C
Explanation
In C the straight boundaries can join into the square while the three curved cutouts meet to form one round interior opening. A has incompatible curved-edge distribution, B changes the third piece geometry, and D lacks the required curved arcs.
Thus **C**.