A solid ‘star’ shape is created by gluing a square-based pyramid, in which each edge is of length 1 unit, precisely onto each face of a cube of edge 1 unit.
How many faces does this ‘star’ have?
Select one option, then click Submit.
18
24
30
36
48
Select an option, then submit.
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Intermediate Mathematical Challenge 2006 (2006)
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