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Program 11: To perform various string operations

                   Program11.py
                File  Edit  Format   Run   Options   Window    Help

                #Accessing string characters in Python
                str = 'Orange Education'
                print('str = ', str)
                print('str[0] = ', str[0])                 #First character
                print('str[-1] = ', str[-1])               #Last character



              On running the above program, you will get the following output:
                   Output

                str =  Orange Education
                str[0] =  o
                str[-1] =  n


              Program 12: To check whether the side of the triangle given by the user form a scalene, isosceles or
              equilateral triangle

                   Program12.py

                File  Edit  Format   Run   Options   Window    Help

                #Program to check if a triangle is Equilateral, Isosceles or Scalene
                def triangle(A,B,C):
                    if (A == B == C):
                        print('Equilateral triangle')
                    elif ((A == B) or (B == C) or (A == C)):
                        print('Isosceles triangle')
                    else:
                        print('Scalene triangle')
                print('Input the sides of the triangle: ')
                A1 = float(input('A: '))
                B1 = float(input('B: '))
                C1 = float(input('C: '))
                triangle(A1,B1,C1)



              On running the above program, you will get the following output:

                   Output
                Input the sides of the triangle:
                A: 2.3
                B: 5.3
                C: 9.5
                Scalene triangle





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