Figuras con turtle utilizando el ciclo for

1. Rectángulo

import turtle

turtle.speed(1)

fondo = turtle.Screen()
fondo.bgcolor("yellow")

for i in range(4):
    turtle.forward(100)
    turtle.right(90)

turtle.done()

import turtle

turtle.speed(1)

fondo = turtle.Screen()
fondo.bgcolor("yellow")

for i in range(4):
    turtle.forward(100)
    turtle.right(90)
    for j in range(1):
        turtle.forward(100)
        turtle.right(80)

turtle.done()

import turtle

turtle.speed(10)

fondo = turtle.Screen()
fondo.bgcolor("yellow")

for i in range(40):
    turtle.forward(100)
    turtle.right(90)
    for j in range(1):
        turtle.forward(100)
        turtle.right(80)

turtle.done()

2. Triángulo

import turtle

turtle.speed(1)

fondo = turtle.Screen()
fondo.bgcolor("gray")
turtle.pensize(2)

for i in range(3):
    turtle.forward(150)
    turtle.left(120)

turtle.done()

import turtle

turtle.speed(10)

fondo = turtle.Screen()
fondo.bgcolor("gray")
turtle.pensize(2)

for i in range(4):
    turtle.forward(150)
    turtle.left(120)
    for i in range(1):
        turtle.forward(150)
        turtle.left(150)

turtle.done()

       
 

import turtle

turtle.speed(10)

fondo = turtle.Screen()
fondo.bgcolor("gray")
turtle.pensize(2)

for i in range(10):
    turtle.forward(150)
    turtle.left(120)
    for i in range(1):
        turtle.forward(150)
        turtle.left(80)

turtle.done()

import turtle

turtle.speed(10)

fondo = turtle.Screen()
fondo.bgcolor("gray")
turtle.pensize(2)

for i in range(12):
    turtle.forward(80)
    turtle.left(120)
    for i in range(1):
        turtle.forward(80)
        turtle.right(150)

turtle.done()