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1947 Moscow Mathematical Olympiad
140
MMO 140 Moscow MO 1947 4 faces of tetrahedron have same area => equal
MMO 140 Moscow MO 1947 4 faces of tetrahedron have same area => equal
Source:
July 20, 2019
geometry
tetrahedron
3D geometry
Problem Statement
Prove that if the four faces of a tetrahedron are of the same area they are equal.
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