👉 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\
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What is the definition of Dihedron? 🙋
👉 A dihedron is a three-dimensional geometric shape consisting of two congruent, regular polygons (triangles and tetrahedra) connected by a curved line. These shapes are often used in geometry to represent solid figures such as cubes, cuboids, prisms, etc. They have the following properties:
1.
Regular
: All sides and angles of the dihedron are equal.
2.
Congruent
: The vertices of each polygon lie on a circle (or sphere)
