from turtle import *
speed(0)
def polygon(d, n):
for i in range(n):
fd(d)
rt(360/n)
color("black")
penup()
goto(-100, -200)
pendown()
begin_fill()
polygon(200, 4)
end_fill()
penup()
goto(-75, 0)
pendown()
begin_fill()
polygon(150, 4)
end_fill()
penup()
goto(-50, 150)
pendown()
begin_fill()
polygon(100, 4)
end_fill()
hideturtle()
done()