Question 24
Some small cubes are glued together as shown in the figure to form a bigger cube. At least how many more cubes are needed to assemble the smallest possible cube?
Diagram convention (editorial): keep the glued assembly fixed, include the supporting cubes below each shown top face, and assume no cavities or extra hidden columns.
Diagram convention (editorial): keep the glued assembly fixed, include the supporting cubes below each shown top face, and assume no cavities or extra hidden columns.