A net of a hypercube
The net of a hypercube in the three-dimensional space (one of the six regular polytopes in dimension 4, it is made of eight cubes): the colours gives an idea of how to identify the square faces (in an analogous way as we fold up the net of a cube to get the cube itself). You can compare with other possible nets of the hypercube.
© matematita
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Net of a hypercube (4D geometry)