def draw_circles(point):
    '\n    Constructs a SimpleTurtle, then uses the SimpleTurtle to draw 10 circles\n    such that:\n      -- Each is centered at the given Point, and\n      -- They have radii:  15  30  45  60  75  ..., respectively.\n    '
    turtle = rg.SimpleTurtle()
    turtle.pen_up()
    turtle.go_to(point)
    turtle.set_heading(0)
    for k in range(1, 11):
        turtle.pen_up()
        turtle.right(90)
        turtle.forward(15)
        turtle.left(90)
        turtle.pen_down()
        turtle.draw_circle((15 * k))
Constructs a SimpleTurtle, then uses the SimpleTurtle to draw 10 circles
such that:
  -- Each is centered at the given Point, and
  -- They have radii:  15  30  45  60  75  ..., respectively.
def draw_circles(point):
    '\n    Constructs a SimpleTurtle, then uses the SimpleTurtle to draw 10 circles\n    such that:\n      -- Each is centered at the given Point, and\n      -- They have radii:  15  30  45  60  75  ..., respectively.\n    '
    turtle = rg.SimpleTurtle()
    turtle.pen_up()
    turtle.go_to(point)
    turtle.set_heading(0)
    for k in range(1, 11):
        turtle.pen_up()
        turtle.right(90)
        turtle.forward(15)
        turtle.left(90)
        turtle.pen_down()
        turtle.draw_circle((15 * k))