Isometric Drawing Edge at 120 degree

 Isometric drawing is a drawing created by using 30 degree angles. It is an axonometric drawing which uses same scale at each axis.
It is the 3D representation of an object on a 2D surface. Isometric means “equal measure”. They are generally used to explain how the object works. In isometric drawings top, front and bottom views of object in same axis are to be made. So, it is helpful in describing the 3D object in two dimensions.