def polycircle(n=12):
t = Turtle('polycircle')
for x in xrange(n):
t.polygon(n, 20)
t.left(360/n)
t.save()
def triangles(side=100, step=20, n=10):
t = Turtle('triangles')
d = 300
for i in xrange(n):
side += (3*step)
t.polygon(3, side)
t.right(120)
t.pen_up()
t.forward(step)
t.left(120)
t.back(step)
t.pen_down()
t.save()