# File: ChapterGraphics/circles3.py
""" Draws three tangent circles r=50
"""
from graphics import *
from math import *

def main():
    r = 50 # radius
    win = GraphWin("Three Circles", 500, 500)
    A = Point(250,250)          #center of first circle
    c1 = Circle(A, r).draw(win)

    B = Point(A.x +2* r, A.y)
    c2 = Circle(B, r).draw(win) # center of second circle
    
    Cy = A.y + r * sqrt(3)
    C = Point(A.x + r, Cy)
    c3 = Circle(C, r).draw(win)

    message = Text( Point(150,475), "Three Tangent Circles" )
    message.draw( win )
    
main()