Hot questions in Spatial Aptitude

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Which one of the following shapes can be used to tile (completely cover by repeating) a flat plane, extending to infinity in all directions, without leaving any empty spa...
1 answers
1 votes
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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0 votes
A circular sheet of paper is folded along the lines in the direction shown. The paper, after being punched in the final folded state as shown and unfolded in the reverse ...
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