Problem 18 · 2020 Math Kangaroo
Hard
Spatial & Visual Reasoning
tiling-tessellationarea-decomposition
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Answer: A
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Hint 1 of 2
The shape has 15 little squares split into 3 equal pieces — how many squares is each piece?
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Hint 2 of 2
Each piece must have exactly that many squares and fit the missing-corner shape.
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Approach: divide the area into three equal pieces and match a piece
- The 4×4 grid missing one square has 15 squares, so each of the three equal pieces has 5 squares.
- Among the choices, the five-square shape that tiles the figure is option A.
Mark:
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