import turtle from math import * t = turtle t.speed(0) ; t.hideturtle() def arcs(): (x,y) = t.position() dep = t.heading() for angle in range(62, 120, 2): alpha = radians(angle) r = 37 / sin(alpha) t.setheading(angle+dep-90) t.penup() t.goto(x,y) t.pendown() t.color((255-2*angle,)*3) t.circle(int(r), 360 - 2 * angle) for i in range(10): t.penup() t.goto(100,0) t.setheading(90) t.circle(100,36*i) t.penup() arcs()