using python 3:

A square is a rectangle which has the same width and height.

write the definition of the Square class as a subclass of Rectangle

write its constructor method, with parameters for its starting point and its size (do not create any new attributes). It could be called as follows:

s = Square((30, 50), 70) 

Below the class definition,

instantiate a Square object

use methods get the following and print the results

the square object

its width

its height

its starting point

its area

its perimeter

Change the Rectangle class three get methods to be getter properties that perform same action as the methods. Add a size getter property to the Square class. It returns the length of a side of the square.

In the code below the class defintions

delete the lines using the area and perimeter methods

use the four getter properties instead of the get methods

class Rectangle: def __init__(self,start,width,height): self.__start = start self.__width = width self.__height = height

def getWidth(self): return self.__width

def getHeight(self): return self.__height

def getStartPoint(self): return self.__start

def __str__(self): return 'start={} w={} h={}'.format(str(self.__start),self.__width,self.__height)

def area(self): return self.__width * self.__height

def perimeter(self): return (self.__width + self.__height) * 2