A PROPERTY OF A TETRAHEDRON WITH A RIGHT TRIHEDRAL ANGLE
A PROPERTY OF A TETRAHEDRON WITH A RIGHT TRIHEDRAL ANGLE
Author(s): Dragomir Grozev, Nikolai NikolovSubject(s): Social Sciences, Education
Published by: Национално издателство за образование и наука „Аз-буки“
Keywords: stereometry; right trihedral angle; tetrahedron; Lagrange’s formula; Euler’s formula; de Gua’s theorem; mathematical olympiad
Summary/Abstract: A property of a tetrahedron with a right trihedral angle is considered. Several approaches to its proof are presented. For this purpose, auxiliary statements are discussed, which also have independent significance.
Journal: Математика и информатика
- Issue Year: 69/2026
- Issue No: 4
- Page Range: 377-386
- Page Count: 10
- Language: English
