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1995 All-Russian Olympiad Regional Round
11.2
parallelepiped is cube All-Russian MO 1995 Regional (R4) 11.2
parallelepiped is cube All-Russian MO 1995 Regional (R4) 11.2
Source:
August 26, 2024
3D geometry
cube
geometry
parallelepiped
Problem Statement
A planar section of a parallelepiped is a regular hexagon. Show that this parallelepiped is a cube.
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