Step 1: Create the module file (shapes_module.py)

python

shapes_module.py

"""This module contains functions to calculate area, perimeter or surface area for various shapes."""

import math

Function for Square

def square(side): area = side * side perimeter = 4 * side return area, perimeter

Function for Rectangle

def rectangle(length, breadth): area = length * breadth perimeter = 2 * (length + breadth) return area, perimeter

Function for Triangle

def triangle(base, height, side1, side2, side3): area = 0.5 * base * height perimeter = side1 + side2 + side3 return area, perimeter

Function for Circle

def circle(radius): area = math.pi * radius * radius perimeter = 2 * math.pi * radius return area, perimeter

Function for Cylinder

def cylinder(radius, height): surface_area = 2 * math.pi * radius * (radius + height) return surface_area

Step 2: Import the module and use functions

python

Main program

import shapes_module as sm

Calculate for Square

s = float(input("Enter side of square: ")) area_sq, peri_sq = sm.square(s) print("Square Area:", area_sq, "Perimeter:", peri_sq)

Calculate for Rectangle

l = float(input("Enter length: ")) b = float(input("Enter breadth: ")) area_rec, peri_rec = sm.rectangle(l, b) print("Rectangle Area:", area_rec, "Perimeter:", peri_rec)

Calculate for Circle

r = float(input("Enter radius of circle: ")) area_cir, peri_cir = sm.circle(r) print("Circle Area:", area_cir, "Perimeter:", peri_cir)

Calculate for Cylinder

r = float(input("Enter radius of cylinder: ")) h = float(input("Enter height of cylinder: ")) sa_cyl = sm.cylinder(r, h) print("Cylinder Surface Area:", sa_cyl)