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Program 6: To calculate the average marks of three subjects.

                                                              Program6.py
                    File  Edit  Format   Run   Options   Window    Help

                    #Program to calculate the average marks of three subjects
                    sub1 = int (input ("Enter the marks of first subject: " ))
                    sub2 = int (input ("Enter the marks of second subject: " ))
                    sub3 = int (input ("Enter the marks of third subject: " ))
                    avg= (subl + sub2 + sub3)/3
                    print ("Average of marks is :" , avg)




                  Program 7: To calculate the volume and surface area of cylinder.

                                                              Program7.py
                    File  Edit  Format   Run   Options   Window    Help

                    #Program to calculate the volume and surface area of cylinder
                    pi = 22/7
                    radius = float (input ("Enter the radius of the cylinder: " ))
                    height = float (input ("Enter the height of the cylinder: " ))
                    volume = pi * radius * radius * height
                    total_surface_area= ((2 * pi * radius) * (radius + height))
                    print ("The volume of the cylinder is:" , volume)
                    print ("Surface area is :", total_surface_area)




                         Restart



                          Python is a popular high-level programming language.
                          Interactive Mode is a command line shell which gives immediate result for each command.
                          IDLE stands for Integrated Development and Learning Environment.

                          The input() function takes the user’s input while a program executes.
                          The print() function prints or sends the output to the standard output device, which is
                        usually a monitor.

                          Variables are memory reference points where we store values which can be accessed or
                        changed later.
                          A data type specifies the type of value a variable can contains.

                          Comments enable us to understand the way a program works.








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