Please use turtle library function to draw a target plate with 9 concentric circles.

import turtle
turtle.Screen().setup(600,600,0,0)
for i in range(1,9):
    turtle.circle(10*i)
    turtle.penup()
    turtle.goto(0,-10*i)
    turtle.pendown()
turtle.done()

Setup determines that the starting point is (0,0), and each circle starts from the starting point when drawing. If you want to draw a concentric circle, you only need to move the starting point down each time to increase the radius difference. Remember to raise the pen, or it will look like the following.