Question

Topics: Branching, Looping, Import user_defined module, functions, docstring Problem Statement: Geometric Calculator In this BWA, we will be building a simple geometric calculator using user-defined functions and import module procedure. The user will have options to choose different shapes like triangle, circle, square, rectangle and what they want to calculate: for e.g. perimeter, area etc. The calculator will provide them the results according to the user choice. Apart from the usage of module and functions, this as- signment also focuses on documenting the code. Therefore, your code should be well documented with docstring(will be discussed in lecture 14), comments and pseudocode. You also have to account for edge cases when a user enters garbage/wrong inputs.

Answer 1

import math

class Rectangle:

  def __init__(self,length,width):
    self.length = length
    self.width = width
  
  def perimeter(self):
    return 2*(self.length + self.width)

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

class Square:

  def __init__(self,length):
    self.length = length
  
  def perimeter(self):
    return 4*(self.length)

  def area(self):
    return self.length**2

class Triangle:

  def __init__(self,s1,s2,s3):
    self.s1 = s1
    self.s2 = s2
    self.s3 = s3
  
  def perimeter(self):
    return self.s1 + self.s2 + self.s3
  
  def area(self):
    s = (self.s1 + self.s2 + self.s3)/2;
    return math.sqrt(s*(s-self.s1)*(s-self.s2)*(s-self.s3))

class Circle:

  def __init__(self,radius):
    self.radius = radius
  
  def perimeter(self):
    return 2*(self.radius)*math.pi

  def area(self):
    return self.radius*self.radius*math.pi


while 1:
  option = input('Choose option \n 1.Calculator 2.Exit')
  if int(option) == 2:
    break
  else:
    shape = input('Enter shape name')
    if (shape == 'triangle'):
      typeoption = int(input('Enter 1.Perimter 2. Area'))
      
      s1 = input('enter side 1:')
      s2 = input('enter side 2:')
      s3 = input('enter side 3:')
      s1 = int(s1)
      s2 = int(s2)
      s3 = int(s3)
      triangle = Triangle(s1,s2,s3)
      if typeoption == 1:
        print(triangle.perimeter())
      else:
        print(triangle.area())
    elif (shape == 'rectangle'):
      typeoption = int(input('Enter 1.Perimter 2. Area'))
      s1 = int(input('enter side 1:'))
      s2 = int(input('enter side 2:'))
      rectangle = Rectangle(s1,s2)
      if typeoption == 1:
        print(rectangle.perimeter())
      else:
        print(rectangle.area())
    elif (shape == 'square'):
      typeoption = int(input('Enter 1.Perimter 2. Area'))
      s1 = int(input('enter side:'))
      square = Square(s1)
      if typeoption == 1:
        print(square.perimeter())
      else:
        print(square.area())
    elif (shape == 'circle'):
      typeoption = int(input('Enter 1.Perimter 2. Area'))
      s1 = int(input('enter side:'))
      circle = Circle(s1)
      if typeoption == 1:
        print(circle.perimeter())
      else:
        print(circle.area())