import turtle

fenster_breite = 800
fenster_hoehe = 800

screen = turtle.Screen()

screen.setup(fenster_breite, fenster_hoehe)

anna = turtle.Turtle()

b = 100
h = 100

pental = 5
winkel = 360/pental

for i in range(0,pental):
    anna.circle(b)
    anna.left(winkel)

turtle.done()