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A net is a flat shape that folds into a solid. The useful question is never what does it look like flat, but which faces end up opposite each other and which edges meet. Tracking one face and its neighbours as you fold is more reliable than imagining the whole thing at once.
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No indexed official paper question has been tagged with GEO-10 yet. The index grows one paper at a time, and it records only question numbers, point values and our own skill tags — never the problems themselves.