Problem 22 · 2019 Math Kangaroo
Stretch
Spatial & Visual Reasoning
net-foldingcube-views
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Answer: B
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Hint 1 of 3
Fold the patterned card into the 2×1×1 box and keep track of which pattern lands on which face.
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Hint 2 of 3
Note which faces end up next to each other and which face is opposite which.
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Hint 3 of 3
Check each answer picture: the one showing faces that cannot really sit together is the odd one out.
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Approach: fold the net and compare adjacent faces
- Fold the marked net into the 2×1×1 box and note the colour of each face and which faces end up adjacent.
- Compare each picture's three visible faces with what the folded box actually allows next to each other.
- Picture B shows a combination of faces the folded box cannot produce (B).
Mark:
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