Return Values

#Draws a circle, rectangle and star showing size and perimeter
from turtle import *
def circle_area(r):#Returns circles area
  return 3.14 * r * r
def circle_circumference(r):#Returns circles circumference
  return 3.14 * 2 * r
def draw_circle(r, col):#Draws circle
    penup()
    goto(-150,0)
    color(col)
    dot(r*2)
    penup()
    goto(-150,5)
    color("black")
    write("Area: " + str(circle_area(r)), align="center")
    penup()
    goto(-150,-5)
    pendown()
    color("black")
    write("Circumference: " + str(circle_circumference(r)), align="center")
def rectangle_area(l,h):#Returns rectangles area
  return l * h
def rectangle_perimeter(l,h):#Returns rectangles perimeter
  return l * 2 + h * 2
def drawrectangle(c,l,h):#Draws rectangle
    color(c)
    length = l
    height = h
    penup()
    goto(-l/2,h/2)
    pendown()
    begin_fill()
    forward(length)
    right(90)
    forward(height)
    right(90)
    forward(length)
    right(90)
    forward(height)
    right(90)
    end_fill()
    penup()
    goto(0,5)
    pendown()
    color("black")
    write("Area: " + str(rectangle_area(l,h)), align="center")
    penup()
    goto(0,-5)
    pendown()
    color("black")
    write("Perimeter: " + str(rectangle_perimeter(l,h)), align="center")
def star_perimeter(s):#Returns stars perimeter
  return s * 10
def draw_star(s,c):#Draws star
        size = s
        color(c)
        angle = 150
        penup()
        goto(200,20)
        begin_fill()
        for side in range(5):
            forward(size)
            right(angle)
            forward(size)
            right(72 - angle)
        end_fill()
        penup()
        goto(175,0)
        pendown()
        color("black")
        write("Perimeter: " + str(star_perimeter(s)), align="center")
        return
draw_circle(100, "blue")
drawrectangle("green", 100, 200)
draw_star(100,"pink")