Descriptive geometry engineering drawing pdf

What is a dihedral angle in descriptive geometry?
Dihedral angle is the angle between two intersected planes..
The following are the different types of views often used in engineering drawing:
Isometric view (dimetric and trimetric view)Orthographic view (front, side, top, bottom and back views)Section view.Cut-out view.Detailed view.Auxiliary view.Exploded view.

is essentially the same as that used in mechani cal drawing. For a long time, practical drafting and descri ptive geometry have had too.

What is a dihedral angle in descriptive geometry?