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A. Concrete State: 1. Cube placed in a specific geographical location The 4 angles of the base are put at distance from each other following the diagonals. The height increases proportionally. 2. The 4 angles are located on the larger possible circle perpendicular to the vertical axis. If, for instance, the cube is on the North Pole, the 4 angles are on the equator. 3. Angles located at the antipodes of the position 1. The initial cube is now a sphere but still responding to the definition of a cube: Height equal to the base, all angles are 90 degrees, plumb line verifiable vertical sides B. Virtual State: Four hexagonal prisms, formed by a diagonal projection of the cube, mark the angles of its base. 1. In this disposition, the cube is presented in the in the situation 1 of the Concrete State. 2. The cube (which is now a sphere too) is presented in the situation 3 of the Concrete State.
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