polymorphism-2.py

# Copyright (C) Deepali Srivastava - All Rights Reserved
# This code is part of Python course available on CourseGalaxy.com

class Rectangle: 
    name = 'Rectangle'
    def __init__(self, length, breadth):
        self.length = length
        self.breadth =  breadth

    def area(self):
        return self.length * self.breadth

    def perimeter(self):
        return 2 * (self.length + self.breadth)

class Triangle:
    name = 'Triangle'
    def __init__(self, s1, s2, s3):
        self.s1 = s1
        self.s2 = s2
        self.s3 = s3

    def area(self):
        sp = (self.s1 + self.s2 + self.s3) / 2
        return ( sp*(sp-self.s1)*(sp-self.s2)*(sp-self.s3) ) ** 0.5

    def perimeter(self):
        return self.s1 + self.s2 + self.s3

class Circle:
    name = 'Circle'
    def __init__(self, radius):
        self.radius = radius
        
    def area(self):
        return 3.14 * self.radius * self.radius

    def perimeter(self):
        return 2 * 3.14 * self.radius

r1 = Rectangle(13,25)
r2 = Rectangle(14,16)
t1 = Triangle(14,17,12)
t2 = Triangle(25,33,52)
c1 = Circle(14)
c2 = Circle(25)

def find_area_perimeter(shape):    
    print(shape.name)
    print('Area : ', shape.area() ) 
    print('Perimeter : ', shape.perimeter() )

find_area_perimeter(t2)
find_area_perimeter(c1)
find_area_perimeter(r2)

shapes = [r1,r2,t1,t2,c1,c2]

total_area = 0
total_perimeter = 0

for shape in shapes:
    total_area += shape.area()
    total_perimeter += shape.perimeter()

print(total_area, total_perimeter)