A construction with 8 cubes
If we put eight cubes together, so that they have some faces in common, we get a cube of double edge. By disposing the cubes in different ways, we obtain other constructions, all of equal volume: which one will have the minimum surface?
Exhibit of matemilano, section "Maxima and minima".
© matematita
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Images from the maximum and minimum section (From the exhibitions of matematita)