I am doing this Blenderguru tutorial to work on my modelling skills.
Question At about 28:30 min in the tutorial it is demonstrated how to assign a material to a selected parts of the mesh. It should become a black circle and a white circle (green in my image). But I guess my shape is not a circle. I think the reason for that is this loop cut I made and that is not there in the tutorial.
But how to change my shape to a circle ? I have tried deleting edges but that does not work.