Saturday, April 11, 2015

428: Surface area of that cube again.

Let's use this Rubik's Cube again, shall we? The total surface area of the cube is 54 square units.
  • Is it possible to remove a unit cube without changing the surface area?
  • How about removing one that increases the area by 2 square units ....
  • or maybe one that can be removed that increases area by 4 sq units?

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