Question

Circle Object Python program

Compute the area and perimeter of a circle using Python classes. take the radius from the user and find the area and perimeter of a circle

please use comments to explain so i better understand

Answer 1

I have written the comments along with the code please go through them.

Code Snippet:

import math # for using pi

class Circle():
    def __init__(self,radius): # init method or constructor    
        """ Initializing Circle class with radius as argument 
        """
        self.radius = radius # assigning radius to data member of circle class

    def area(self):
        """ Function calculates the circle area
            Formula = pi * radius**2
        """
        circle_area = math.pi * (self.radius**2) # calculating area of circle

        return circle_area
    
    def circumference(self):
        """ Function calculate the circumference of the circle
            Formula = 2 * pi* radius
        """    
        circle_circumference = 2 * math.pi * self.radius # calculating circumference of circle

        return circle_circumference


def main():
    circle = Circle(radius=float(input("Enter circle radius to calculate Area and Circumference: ")))
    print("Area of Circle with radius {} is {}".format(circle.radius, circle.area()))
    print("Circumference of Circle with radius {} is {}".format(circle.radius, circle.circumference()))


if __name__ == "__main__":
    main()

Images of Code and Outputs:

Console Output:

Leave a comment for any further doubts.