Question

Design in Python (pseudocode) and implement (source code) a program (name it MyRectangle) that defines the following 3 methods: Method isValid() returns true if the sum of the width and height is greater than 30 Method Area() returns the area of the rectangle if it is a valid rectangle Method Perimeter() returns the perimeter of the rectangle if it is a valid rectangle The main method of MyRectangle prompts the user to enter the width and height of a rectangle and uses MyRectangle methods to print out a message followed by the area and perimeter if the rectangle is valid. Otherwise, it prints out only the message “This is invalid rectangle. Try again.”. Note that method isvalid() is used to validate the input before attempting to compute the area and perimeter. Document your code and properly label the input prompt and the outputs as shown below. Sample run 1: Entered width: 4 Entered height: 5 This is invalid rectangle. Try again Sample run 2: Entered width: 20 Entered height: 15 Area: 300 Perimeter: 70 Sample run 3: Entered width: 10 Entered height: 5 This is invalid rectangle. Try again. Sample run 4: Entered width: 30 Entered height: 6 Area: 180 Perimeter: 72

Answer 1

#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
Author :
Date : 24/10/18
Description :
"""


def isValid(w, h):
    """

    :param w:  width of rectangle
    :param h: height of rectangle
    :return:
    """
    if (w + h) > 30:
        return True
    return False


def Area(w, h):
    """

    :param w:  width of rectangle
    :param h: height of rectangle
    :return: Area of rectangle
    """
    return w * h


def Perimeter(w, h):
    """

    :param w:  width of rectangle
    :param h: height of rectangle
    :return: Perimeter of rectangle
    """
    return 2 * (w + h)


if __name__ == '__main__':

    width = int(input("Enter width:"))
    height = int(input("Enter height :"))
    if isValid(width, height):
        print("Area :", Area(width, height))
        print("Area :", Perimeter(width, height))
    else:
        print("This is invalid rectangle. Try again")

Sample Run: