# shapes.py
# ---------
# By MWC contributors

from turtle import forward, right, left, penup, pendown, goto

def triangle(side_length):
    forward(side_length)
    right(120)
    forward(side_length)
    right(120)
    forward(side_length)
    left(120)

def rectangle(height, width):
    forward(width)
    right(90)
    forward(height)
    right(90)
    forward(width)
    right(90)
    forward(height)
    right(90)

def flyto(x, y):
    penup()
    goto(x, y)
    pendown

flyto(-100, 0)
rectangle(2, 4)
rectangle(4, 8)
rectangle(8, 16)
flyto(100,0)
triangle(10)
triangle(20)
triangle(30)