Trial Code

from turtle import *

tom = Turtle()
tom.speed(0)

# sides = 21
# for x in range(sides):
#   tom.forward(120)
#   tom.left(180-(180/sides))

# radius = 25
# for x in range(25):
#   tom.circle(radius)
#   radius = radius + 5

# for x in range(4):
#   tom.circle(35)
#   tom.penup()
#   tom.forward(40)
#   tom.pendown()

# sides = 11
# length = 15
# for x in range(sides*5):
#   tom.forward(length)
#   tom.left(180-(180/sides))
#   length = length + 5
#   # tom.left(360/sides)

radius = 25
for x in range(3):
  for x in range(8):
    tom.circle(radius)
    tom.left(45)
  radius = radius + 25

done()