For loops in Turtle

import turtle

tina = turtle.Turtle()

tina.hideturtle()

tina.speed(100)

tina.color("green")

for number in range(100):
    tina.forward(number*2)
    tina.left(60)

mina =turtle.Turtle()

mina.hideturtle()

mina.speed(100)
mina.pensize(width=10)
mina.color("red")

for number in range(100):
    mina.forward(number*2)
    mina.left(-60)

dina =turtle.Turtle()

dina.speed(100)

dina.color("purple")

dina.goto(0,0)