2018-07-09

from turtle import *

external=100
inside=50

point=0
fillcolor('red')
color('red','red')
begin_fill()
for case in [0,120,240] :
    seth(case)
    fd(external)
for case in [360,420,540,660] :
    seth(case)
    fd(inside)
end_fill()
done()