Coincidence for non circular parts

[Barcode22]

Hello there,

hope you are all doing good !!!
I'm used to doing coincidence for circular parts like spheres or something but now im trying to make a coincidence for 2 rectangles which dont have an axis for me to allign them centre on centre .. what should i do for that?

 

[MrCATIA]

In an assembly, you can constrain 2 rectangular parts several ways:

3 Coincidence constraints: face to face, face to face, and face to face

or

3 Coincidence constraints: vertex to vertex, vertex to vertex, and vertex to vertex (if the 2 rectangles are the same size)

or

2 Coincidence constraints: vertex to vertex, and edge to edge

or

1 Coincidence constraint: axis to axis

or many other combinations of constraints