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Miklós Schweitzer
1955 Miklós Schweitzer
8
8
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1955 Miklós Schweitzer
Problems
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Miklós Schweitzer 1955- Problem 8
Source:
10/8/2015
8. Show that on any tetrahedron there can be found three acute bihedral angles such that the faces including these angles count among them all faces of tetrahedron. (G. 10)
geometry
3D geometry
tetrahedron
college contests