Нарисовать правильный шестиугольник

from tkinter import *
import math
 
class App:
    def __init__(self, main):
 
        self.entry_1 = Entry(main, width=20)
 
        self.b_draw = Button(main, width=15, text="Draw")
        self.b_clear = Button(main, width=15,text="Clear")
        self.b_quit = Button(main, width=15, text="Quit")
 
 
        self.lbl_radius = Label(main,width=10,  text="Enter radius:")
        self.lbl_radius_1 = Label(main, width=20)
 
 
 
        self.b_draw.grid(row=0, column=0)
        self.b_clear.grid(row=2, column=0)
        self.b_quit.grid(row=18, column=0)
 
 
        self.lbl_radius.grid(row=4, column=0)
        self.lbl_radius_1.grid(row=10, column=0)
 
 
        self.entry_1.grid(row=5, column=0)
 
 
        self.b_draw.bind("<Button-1>", self.poligon)
        self.b_clear.bind("<Button-1>", self.canvas_clr)
        self.b_quit.bind("<Button-1>", self.close)
 
    def poligon(self,event):
 
        radius = self.entry_1.get()
        radius = int(radius)
 
        n = 6
        for i in range(1, n + 1):
            x1 = 340 + int(radius * math.cos(2*math.pi*i)) // n
            y1 = 250 + int(radius * math.sin(2*math.pi*i)) // n
 
            x2 = 340 + int(radius * math.cos(2*math.pi*i)) // n
            y2 = 250 + int(radius * math.sin(2*math.pi*i)) // n
 
            canvas.create_line((x1, y1), (x2, y2), fill="blue")
 
    def canvas_clr(self, event):
        canvas.delete("all")
 
    def close(self,event):
        root.destroy()
 
root = Tk()
 
root.title("Huy")
canvas = Canvas(width=700, height=500, bg='yellow')
canvas.grid(row=0, column=1, rowspan=20)
 
app = App(root)
root.mainloop()

radius = 100
 
canvas.create_polygon([300,300-radius],
 
                      [300+int(radius*math.cos(math.pi/6)),300-radius//2],
 
                      [300+int(radius*math.cos(math.pi/6)),300+radius//2],
 
                      [300,300+radius],
 
                      [300-int(radius*math.cos(math.pi/6)),300+radius//2],
 
                      [300-int(radius*math.cos(math.pi/6)),300-radius//2],
 
                      fill="gray", outline="yellow")