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2019 Math Kangaroo

Problem 10

Problem 10 · 2019 Math Kangaroo Medium
Spatial & Visual Reasoning paper-cuttingspatial-reasoningcomposition

Which of the figures can be cut into these 3 pieces?

Figure for Math Kangaroo 2019 Problem 10
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Answer: C
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Hint 1 of 2
Imagine sliding the three given pieces together with no gaps and no overlaps.
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Hint 2 of 2
For each answer shape, check whether the three pieces fill it up exactly.
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Approach: fit the three pieces together and match the filled shape to a choice
  1. Picture pushing the three pieces together so their straight edges touch.
  2. When they fit with no gaps and nothing sticking out, they make one whole shape.
  3. Compare that whole shape to each answer figure.
  4. Only one figure can be cut into exactly these pieces, and that is option C.
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