Struggling to make concentric circles

Hi everyone,
I’m really struggling to create 3 concentric circles to divide my web design into three sections. I was wondering if this is possible? I keep trying by placing the circles on top of each other then stretching them out from the top left hand corner to the bottom right and I can’t seem to do it?
Can anyone help me please?
I’m a total beginner at this.

Hi @andrew-sparke

Can you provide more details about what you are trying to design? maybe a visual?