Simple Cube and Eightfold Cube
Two cubes in red chalk comparing volume
Two cubes are drawn in perspective in red chalk: a small single cube above and a larger cube below whose internal divisions suggest it is made of eight smaller cubes. The pairing, captioned as a simple cube and an eightfold cube, illustrates how doubling the side of a cube multiplies its volume eightfold.
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A cube and its eightfold enlargement
A small cube is sketched at the upper right and a larger cube below it, the larger one drawn with subdividing lines that break it into smaller cubic cells. Set side by side they compare a unit cube with one of double the edge. The study visualises the eightfold growth in volume when a cube's side is doubled.