calc_area.py

# Author: PrajaktaSathe
# Program to calculate the area of - square, rectangle, circle, and triangle -
import math as m


def main():
    shape = int(
        input(
            "Enter 1 for square, 2 for rectangle, 3 for circle, 4 for triangle, 5 for cylinder, 6 for cone, or 7 for sphere: "
        )
    )
    if shape == 1:
        side = float(input("Enter length of side: "))
        print("Area of square = " + str(side ** 2))
    elif shape == 2:
        l = float(input("Enter length: "))
        b = float(input("Enter breadth: "))
        print("Area of rectangle = " + str(l * b))
    elif shape == 3:
        r = float(input("Enter radius: "))
        print("Area of circle = " + str(m.pi * r * r))
    elif shape == 4:
        base = float(input("Enter base: "))
        h = float(input("Enter height: "))
        print("Area of rectangle = " + str(0.5 * base * h))
    elif shape == 5:
        r = float(input("Enter radius: "))
        h = float(input("Enter height: "))
        print("Area of cylinder = " + str(m.pow(r, 2) * h * m.pi))
    elif shape == 6:
        r = float(input("Enter radius: "))
        h = float(input("Enter height: "))
        print("Area of cone = " + str(m.pow(r, 2) * h * 1 / 3 * m.pi))
    elif shape == 7:
        r = float(input("Enter radius: "))
        print("Area of sphere = " + str(m.pow(r, 3) * 4 / 3 * m.pi))
    else:
        print("You have selected wrong choice.")

    restart = input("Would you like to calculate the area of another object? Y/N : ")

    if restart.lower().startswith("y"):
        main()
    elif restart.lower().startswith("n"):
        quit()


main()