COURSE OF SOLID GEOMETRY – CHAPTER 4 – PART 1
Trihedral and Polyhedral Solid Angle
Solid Angles
2 Definitions about Solid Angles
Trihedrons
Definitions about Trihedrons
Properties about Trihedrons
Theorems about Trihedrons
Corollaries Resulting from Theorem 1
COURSE OF SOLID GEOMETRY – CHAPTER 4 – PART 2
Trihedral and Polyhedral Solid Angle
Trihedrons
Properties about Trihedrons
Theorems about Trihedrons
2 Corollaries Resulting from Theorems
Trihedrons Equalities
4 Cases of Equalities of Trihedrons
Supplementary Trihedrons Construction
COURSE OF SOLID GEOMETRY – CHAPTER 4 – PART 3
Polyhedrons
Polyhedral Solid Angles Properties
First Property
Second Property