Help With Finding the positions of a surface

Im trying to get the position of the surface of a Part relative to a Center part

The Problem is that my part are rotated around the center and i don’t know how to get the position of the surface and i didn’t found any solutions.
Here is an example where in yellow are the surfaces and the circle the center part
image

Hello, next time publishing a topic, you can do a small surf on the devforum. How do I find the position of a surface on a part?