Нахождение количеста отрезков благодаря точкам на круге

n = input("Количество точек:")
print(n * (n - 1) / 2)

from math import pi, cos, sin
from tkinter import *
from random import randint
r = 5
coef = 40 #масштаб
n = 10
center = 300
p = [[int(center + r * coef * cos((a:=randint(0, 360)) / 180 * pi)), int(center + r * coef * sin(a / 180 * pi))] for _ in range(n)]
window = Tk()
canvas = Canvas(window,width=600,height=600,bg="gray", cursor="arrow")
canvas.create_oval(center - r * coef, center - r * coef, center + r * coef, center + r * coef, width=2, outline='red')
for i in range(n - 1):
    canvas.create_oval(p[i][0] - 2, p[i][1] - 2, p[i][0] + 2, p[i][1] + 2, outline='black', fill='blue')
    for j in range(i + 1, n):
        canvas.create_line(p[i][0] - 2, p[i][1] - 2, p[j][0] + 2, p[j][1] + 2, fill='green')
canvas.pack()
window.mainloop()

from math import sqrt
from random import uniform
def circle(n: int):
    r = 5 # радиус
    c = [0,0] #центр окружности
    mi,ma = (c[0]-r),(c[1]+r)
    arrx = [round(uniform(mi, ma),2) for i in range(n)]
    arry = []
    for x in arrx:
        arry.append(round(sqrt(r**2 - (x-c[0])**2)+c[1],2))
    res = int(n*(n - 1)/2)
    respnt = zip(arrx,arry)
    print("Количество отрезков: ", res)
    print("Координаты точек на окружности:\n",list(respnt))
 
circle(int(input('Введите количество точек: ')))