task--3

from turtle import *

def square(size=50,rgb='pink'):
    rgb = 'yellow'
    pencolor(rgb)
    for i in range(4):
        fd(size)
        left(90)

def main():
    setup(800,600)
    speed(0)

    n = 10
    for i in range(n):
        square(80)
        left(360/n)


    hideturtle()
    done()

if __name__=='__main__':
    main()

task--4

from turtle import *

setup(800,600)
pencolor('pink')

n = 10
for i in range(n):
    for j in range(2):
        circle(80,90)
        left(90)

    right(360/n)

hideturtle()
done()

task--5

from turtle import *

setup(800,600)
bgcolor('black')
pencolor('white')
speed(0)

angle = 0
size = 2

n = 10
for i in range(n):
    for j in range(4):
        fd(size)
        angle += 72
        seth(angle)
        size += 5

hideturtle()
done()

task--6

from random import random
from turtle import*

setup(800,600)
speed(0)

def rect(x=10,y=50,rgb='black'):
    rgb=tuple(random() for i in range(3))
    color(rgb)
    for i in range(1,5):
        if i%2==1:
            fd(10)
        else:
            fd(50)
        lt(90)
for i in range(20):
    penup()
    goto(-100+i*10,0)
    pendown()
    begin_fill()
    rect()
    end_fill()
hideturtle()
done()