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Old Kyiv MO Geometry
Kyiv City MO 1984-93 - geometry
1986.9.2
1986.9.2
Part of
Kyiv City MO 1984-93 - geometry
Problems
(1)
rhombuses, equal #, faces of convex polyhedron 1986 Kyiv City MO 9.2
Source:
7/16/2021
The faces of a convex polyhedron are congruent parallelograms. Prove that they are all rhombuses.
geometry
3D geometry
polyhedron
rhombus