The range of values of all angles in high school mathematics (such as dihedral angle, how many degrees is the included angle of vectors, including how many degrees, excluding how many degrees, etc.). ) Vector included angle: [0`, 180`]

Inclination angle: [0`, 180 `]

* * * included angle of plane straight line: [0`, 90`]

Angle from line 1 to line 2: (0', 180')

Angle between straight line and plane: [0`, 90`]

Included angle of straight lines in different planes: (0`, 90`]

Dihedral angle: [0',180']

Absolutely accurate, all from textbooks.