alleryWhich of these regular shapes can tile a floor on its own with no gaps?
AOctagon
BPentagon
CCircle
DSquare
Answer & Solution
Correct answer: D. Square
1. Only three regular shapes can tile on their own: the equilateral triangle, the square and the regular hexagon.
2. A circle leaves gaps.
3. A regular pentagon and a regular octagon also leave gaps, so the square is the answer.
_Source: Wikipedia, Tessellation (CC BY-SA 4.0), Tessellation_
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