Problem 9 · 2013 Math Kangaroo
Medium
Spatial & Visual Reasoning
cube-viewsshadows-projections
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Answer: E
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Hint 1 of 2
Imagine the pyramid's silhouette from each of the six directions.
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Hint 2 of 2
Which square pattern would need the apex to sit exactly over the centre of the base?
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Approach: project the pyramid along each axis
- The apex S is the midpoint of a cube edge, never over the centre of the square base.
- So no view puts both base diagonals crossing at the middle.
- The full 'X' (both diagonals) view is impossible: E.
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