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Dihedral angle

Lecture



A dihedral angle is a figure formed by two planes with a common straight line bounding them. The half-planes are called faces , and the straight line bounding them is called the edge of a dihedral angle.

  Dihedral angle

A plane perpendicular to the edge of a dihedral angle intersects its faces along two half-lines. The angle formed by these half-lines is called the linear angle of the dihedral angle.
created: 2014-10-05
updated: 2021-03-13
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Stereometry

Terms: Stereometry