clear()
setSpeed(fast)
forward(100) //square
showAxes()
showGrid()
right()
setFillColor(green)
forward(100)
right()
forward(100)
right()
setFillColor(blue) //triangle
forward(100)
right()
forward(100)
right()
setFillColor(yellow)
forward(100)
right()
forward(100)
setFillColor(red)//triangle
forward(100)
right(135)
forward(140)
setFillColor(black)//triangle
forward(140)
right(135)
forward(100)
setBackgroundV(green,white)