from tkinter import *
from math import *
root = Tk()
canvas = Canvas(root, width = 360, height=360)
canvas.create_oval(50, 50, 310, 310)
t = 0
while(t < 2*pi):
    #canvas.create_line(180+130*cos(t), 180-130*sin(t),180+130*cos(2*t), 180-130*sin(2*t))
    #canvas.create_line(180+130*cos(t), 180-130*sin(t),180+130*cos(3*t), 180-130*sin(3*t))
    canvas.create_line(180+130*cos(2*t), 180-130*sin(2*t),180+130*cos(5*t), 180-130*sin(5*t))
    t = t + pi/80
canvas.pack()
root.mainloop()