👉 In geometry, a dihedral angle is an angle formed by two intersecting planes in three-dimensional space. It is named after the dihedral group of 360° rotations. A dihedral angle can be thought of as the measure of the angle between two lines or planes that are perpendicular to each other at their intersection. For example, consider a cube with edges of length \(a\) and let one of its faces meet the opposite face at an angle \(\theta\
