Question

Write a Python program named lastNameVolumes that finds the volumes of different 3 D objects such...

Write a Python program named lastNameVolumes that finds the volumes of different 3 D objects such as a cube, sphere, cylinder and cone.

In this file there should be four methods defined.

  • Write a method named cubeVolFirstName, which accepts the side of a cube in inches as an argument into the function. The method should calculate the volume of a cube in cubic inches and return the volume. The formula for calculating the volume of a cube is given below.
  • Write a method named sphereVolFirstName, which accepts the radius of a sphere in inches as an argument into the function. The method should calculate the volume of a sphere in cubic inches and return the volume. The formula for calculating the volume of a sphere is given below.
  • Write a method named cylVolFirstName, which accepts the radius of a cylinder and height of the cylinder in inches as arguments into the function. The method should calculate the volume of a cylinder in cubic inches and return the volume. The formula for calculating the volume of a cylinder is given below.
  • Write a method named coneVolFirstName, which accepts the radius of a cone and height of the cone in inches as arguments into the function. The method should calculate the volume of a cone in cubic inches and return the volume. The formula for calculating the volume of a cone is given below.
  • You don’t have to define a main in this program.

Now Write a Python program named LastNameMenu that asks the user to find volumes of 3D objects. The program will then present the following menu of selections:

  1. Volume of a cube in cubic inches.
  2. Volume of a sphere in cubic inches.
  3. Volume of a cylinder in cubic inches.
  4. Volume of a cone in cubic inches.
  5. Exit the program

  • This program should import lastNameVolume and should be able to use the functions from that file.
  • Write a void method named menuFirstName that displays the menu of selections. This method should not accept any arguments.
  • The program should continue to display the menu until the user enters 5 to quit the program.
  • If the user selects an invalid choice from the menu, the program should display an error message.
  • Based on the option entered, corresponding volume function from the other file is invoked and the volume is displayed by the Menu program.
  • For example if option 1 is entered, the menu program should ask for the side of the cube in inches
    • Make sure that the input is a positive number greater than 0.
    • Write one validInput program in the Menu file which returns True if the input is valid.
    • This function can be reused for all inputs.
    • Once the input is validated, it calls the cubeVolFirstName function in the other file which returns the volume.
    • The volume is displayed. Format the volume output to two decimals
  • As usual submit the two files in the form of a zip file
  • Add comments to show what each function does.

Here are the formula used for volume calculation:

Volume of a cube with side a = a3

Volume of a sphere with radius r =4/3 π r3

Volume of a cylinder with radius r and height h = π r2 h

Volume of a cone with radius r and height h = 1/3 π r2 h

Here is an example session with the program, using console input. The user’s input is shown in bold.

MENU

  1. Volume of a cube in cubic inches.
  2. Volume of a sphere in cubic inches.
  3. Volume of a cylinder in cubic inches.
  4. Volume of a cone in cubic inches.
  5. Exit the program

Enter your choice: 1 [Enter]

We are going to calculate the volume of a cube.

Please enter the side of a cube in inches: 10 [Enter]

Volume of the cube with side 10 inches is: 1000.00 cubic inches.

MENU

  1. Volume of a cube in cubic inches.
  2. Volume of a sphere in cubic inches.
  3. Volume of a cylinder in cubic inches.
  4. Volume of a cone in cubic inches.
  5. Exit the program

Enter your choice: 3 [Enter]

We are going to calculate the volume of a cylinder.

Please enter the radius of a cylinder in inches: 2.5 [Enter]

Please enter the height of a cylinder in inches: 6 [Enter]

Volume of the Cylinder with radius 2.5 inches and height 6 inches is: 117.81 cubic inches.

MENU

  1. Volume of a cube in cubic inches.
  2. Volume of a sphere in cubic inches.
  3. Volume of a cylinder in cubic inches.
  4. Volume of a cone in cubic inches.
  5. Exit the program

Enter your choice: 5 [Enter]

Bye!

Homework Answers

Answer #1

THIS IS THE CODE OF THE FILE  LastNameMenu.py .

from lastNameVolumes import *
def menuFirstName():
    print("MENU\n")
    print("Volume of a cube in cubic inches.\n")
    print("Volume of a sphere in cubic inches.\n")
    print("Volume of a cylinder in cubic inches.\n")
    print("Volume of a cone in cubic inches.\n")
    print("Exit the program\n")

def validate(r,h):
    if r>0 and h>0:
        return True
    else:
        return False
    
def validate2(s):
    if s>0:
        return True
    else:
        return False

menuFirstName()
while True:
    a=int(input("Enter your choice:\n"))

    if a==1:
        print("We are going to calculate the volume of a cube.\n")
        b=float(input("Please enter the side of a cube in inches:\n"))
        c=validate2(b)
        if c==1:
            e=cubeVolFirstName(b)
            print("Volume of the cube with side " + str(b) + " inches is: " + str(e) + " cubic inches.\n")
        menuFirstName()
        
        
    elif a==2:
        print("We are going to calculate the volume of a sphere.\n")
        b=float(input("Please enter the radius of a sphere in inches:\n"))
        c=validate2(b)
        if c==1:
            print("Volume of the sphere with radius " + str(b) + " inches is: " + str(sphereVolFirstName(b)) + " cubic inches.\n")
        menuFirstName()
        
    elif a==3:
        print("We are going to calculate the volume of a cylinder.\n")
        b=float(input("Please enter the radius of a cylinder in inches:\n"))
        d=float(input("Please enter the height of a cylinder in inches:\n"))
        c=validate(b,d)
        if c==1:
            print("Volume of the cylinder with radius " + str(b) + "and height " + str(d) + "inches is: " + str(cylVolFirstName(b,d)) + " cubic inches.\n")
        menuFirstName()
        
    elif a==4:
        print("We are going to calculate the volume of a cone.\n")
        b=float(input("Please enter the radius of a cone in inches:\n"))
        d=float(input("Please enter the height of a cone in inches:\n"))
        c=validate(b,d)
        if c==1:
            print("Volume of the cone with radius " + str(b) + " and height " + str(d) + " inches is: " + str(coneVolFirstName(b,d)) + " cubic inches.\n")
        menuFirstName()
        
    elif a==5:
        print("Bye!")
        exit()
    else:
        print("ERROR !!! Enter correct value\n")
        menuFirstName()
        

THIS IS THE CODE OF THE FILE lastNameVolumes.py

def cubeVolFirstName(side):
    return round((side*side*side),2)
def sphereVolFirstName(radius):
    return round(((4*3.14*radius*radius*radius)/3),2)
def cylVolFirstName(radius,height):
    return round((3.14*radius*radius*height),2)
def coneVolFirstName(radius,height):
    return round(((3.14*radius*radius*height)/3),2)

HOPE IT HELPS YOU :)

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