Dihedral Written by Pamela

Dihedral is the angle between an aircraft supporting surface (as a wing) and a horizontal transverse line.

Dihedral is basically the little space between the wings of a plane or kite.

It is the angle on a plane's wing because it is the part where the wing and the plane are attached together so that is the angle (Dihedral).

For example: this is a plane Dihedral: 

 

Another Example: A kite Dihedral:

It is just like a plane just that a kite is an aircraft consisting of many wings tethered to an anchor system and a plane is a powered flying vehicle with fixed wings.