BC Question PAT

goutamk

Full Member
5+ Year Member
Dec 13, 2011
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  1. Pre-Dental
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I was wondering how there are 18 cubes since I only counted 17? It also said that one of the cubes had 0 sides painted and the only possible one that I can think of is the one at the bottom of the stack of 3 but doesn't that mean that there must be a cube behind it? I thought that we weren't allowed to assume that cubes are present (if hidden from sight) unless they're needed for support.
 
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