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E.  Long answer type questions.

                     1.  List any four features of Python.
                     2.  What is a variable? What are the rules to define a variable?

                     3.  What is the use of the input( ) statement? Explain with the help of an example.

                                                    In the lab                                      Computational Thinking



                        Write a program to calculate the simple interest. SI = (P * r * t ) / 100
                        where,

                        P is for principle amount

                        r is for rate of interest
                        t is for time duration

                     Hint:
                        P = 200
                        r = 2

                        t = 3

                        SI = (P * r * t) / 100
                        print (“simple interest is”, SI)

                        Write a program in which the string value is defined inside single, double and triple quotation marks.
                     Hint:
                        str1 = ‘hello’

                        str2 = “orange”
                        str3 = “’education”’

                        print (str1)

                        print (str2)
                        print (str3)
                        Write a program to input the radius value and calculate area of a circle.
                     Hint:

                        radius = int(input (“enter the radius”))
                        area = π * r * r
                        print (“Area of circle”, A)



                   Teacher's Corner

                  1.  Talk about the various open-source software.
                  2.  Discuss about the features of Python and how they contribute to make Python a strong programming language.
                  3.  Explain the syntax of input( ) and print( ) statements.


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