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Geometry Ch1 Review #9

Question from Macey:

I am stuck on problem 9 in Review 1.  Can you please explain how I would get 9? 


Answer from Dr. Callahan:


This is a common problem. It is asking in how many lines do the edges of the pattern lie. 

  • LM
  • JP
  • WQ
  • UT
  • JW
  • LU
  • MT
  • OR (This is the one you might have missed)
  • PQ
Note that when a CUBE is formed, OR would be an edge.