A collection of python language functions to calculate the area of square, rectangle, scalene triangle and circle

In this code snippet, we’ll show an example of  python language functions to calculate the area of square, rectangle, scalene triangle and circle.

Python language functions to calculate the area of square, rectangle, scalene triangle and circle

import math


def square(side: float) -> float:
    """
    Calculate the area of a square.

    Parameters:
        side (float): The length of one side of the square.

    Returns:
        float: The area of the square.
    """
    return side * side


def rectangle(length: float, width: float) -> float:
    """
    Calculates the area of a rectangle.

    Parameters:
        length (float): The length of the rectangle.
        width (float): The width of the rectangle.

    Returns:
        float: The area of the rectangle.
    """
    return length * width


def triangle(base: float, height: float) -> float:
    """
    Calculate the area of a triangle.

    Args:
        base (float): The base length of the triangle.
        height (float): The height of the triangle.

    Returns:
        float: The area of the triangle.

    """
    return (base * height) / 2


def scalene_triangle(first_side: float, second_side: float, third_side: float) -> float:
    """
        Calculates the area of a scalene triangle given the lengths of its three sides.

        Args:
            first_side (float): The length of the first side of the triangle.
            second_side (float): The length of the second side of the triangle.
            third_side (float): The length of the third side of the triangle.

        Returns:
            float: The area of the scalene triangle.
    """
    semiperimeter = (first_side + second_side + third_side) / 2
    return math.sqrt((semiperimeter * (semiperimeter - first_side) * (semiperimeter - second_side) * (semiperimeter - third_side)))


def circle(radius: float) -> float:
    """
    Calculate the area of a circle based on the given radius.

    Parameters:
        radius (float): The radius of the circle.

    Returns:
        float: The area of the circle rounded to 2 decimal places.
    """
    return round(math.pi * radius * radius, 2)


def area():
    print("\nHere are the available figures: Square, Rectangle, Triangle, Circle")
    figure = input(
        "Please, Type the figure you want to calculate the area of: ")

    if figure.lower() == "square":
        side = float(input("Type the side of the square: "))
        print(f"The area of the square is {square(side)}")
    elif figure.lower() == "rectangle":
        length = float(input("Type the length of the rectangle: "))
        width = float(input("Type the width of the rectangle: "))
        print(f"The area of the rectangle is {rectangle(length, width)}")
    elif figure.lower() == "triangle":
        triangle_list = ["Square", "Rectangle", "Triangle", "Scalene"]
        print(f"Here are the following options: {', '.join(triangle_list)}")
        triangle_choice = input("Type the base of the triangle: ")
        while triangle_choice.lower() not in triangle_choice:
            triangle_choice = input(
                f"This is not a valid option !!!\nTry again using one of the following options [{', '.join(triangle_list)}] : ")
        if triangle_choice.lower() == "scalene":
            first_side = float(input("Type the first side of the triangle: "))
            second_side = float(
                input("Type the second side of the triangle: "))
            third_side = float(input("Type the third side of the triangle: "))
            print(
                f"The area of the scalene triangle is {scalene_triangle(first_side, second_side, third_side)}")
        else:
            base = float(input("Type the base of the triangle: "))
            height = float(input("Type the height of the triangle: "))
            print(f"The area of the triangle is {triangle(base, height)}")
    elif figure.lower() == "circle":
        radius = float(input("Type the radius of the circle: "))
        print(f"The area of the circle is {circle(radius)}")
    else:
        print("This is not a valid figure")
        area()


def main():
    print("".center(80, "*"))
    print("Welcome to the area calculator!".center(80, "*"))
    print("".center(80, "*")+"\n")
    area()


if __name__ == "__main__":
    main()

All code from this code snippet package can be downloaded here.

MIT Licensed Code – See License

Tags: python, calculate area, area of square, area of rectangle, area of scalene triangle, area of circle, radius of square, area of rectangle, area of scalene triangle, python function, square root, sqrt