circle(radius)
penup()
circles(100, 'red')
circles(50, 'yellow')
circles(25, 'green')

def hexagon(size_length):
    pendown()
forward(size_length)
right(60)
goto(x, y)
for _ in range(6):
    hexagon(50)
exitonclick()
How to draw a circle and a hexagon with the turtle module?