Turtle rectangle with return

# assignment lesson 1.9

import turtle
turtle.setup(500,500)
board = turtle.Turtle()

def area_rectangle(width, height):
    return width*height

def perimeter_rectangle(width, height):
    return (2*width)+(2*height)

# draws a rectangle given top left position of a rectangle
def draw_filled_rectangle(board,x,y,width,height,size,color,fill):
    board.fillcolor(fill)
    board.pencolor(color)
    board.pensize(size)
    board.setheading(0)

    board.begin_fill()
    board.up()
    board.goto(x,y)
    board.down()
    # draw top
    board.forward(width)
    # draw right
    board.right(90)
    board.forward(height)
    # draw bottom
    board.right(90)
    board.forward(width)
    # draw left
    board.right(90)
    board.forward(height)
    board.end_fill()
    board.penup()
    board.goto(-80, 0)
    board.pendown()
    board.write("perimeter: " + str(perimeter_rectangle(width, height)) + "        area: " + str(area_rectangle(width, height)), align="left")
    #board.write("area: " + str(area_rectangle(width, height)) + ";       perimeter: " + str(perimeter_rectangle(width, height)), align="left")

# The center of the canvas in turtle is 0,0
# Then the position the rectangle in the center
# Note: We need to pass the top left co-ordinates of rectangle
# The rectangle has 200 pixels in width and 100 pixels in height
# Also specifies the rectangle color and the fill color
draw_filled_rectangle(board,-100,50,200,100,5,"blue","lightgreen")
turtle.done()