# This program cauculates the perimeter and area of different shapes.

print("This program cauculates the perimeter and area of different shapes.. lets begin")

repeat = ""

while repeat == "":

   shape = input("Choose a shape from a square, rectangle, or a circle.")

   

   if shape == "s":
    print ("square")
    side = float(input("Enter the length of a side "))
    square_area = side **2
    square_perimeter = side *4
    print(f"The perimeter of a square with a length of {side} is {square_perimeter} "
          f"the area is {square_area}")

    repeat = input("To repeat the program press "
                "enter or any other key to end it")   
   elif shape == "r":
    print("rectangle")
    length = float(input("Enter the length of the rectangle "))
    width = float(input("Enter the width of the rectangle "))
    perimeter = (length + width) * 2
    area = width * length
    print(f"The perimeter of the rectangle is {perimeter} "
          f"the area is {area}")

    repeat = input("To repeat the program press "
                "enter or any other key to end it")


   elif shape == "c":
    radius = float(input("Enter the radius of the circle "))
    perimeter = (2 * radius) * 3.14
    area = 3.14 * radius**2
    print(f"The circumference of the circle is {perimeter} "
          f"the area is {area}")

    repeat = input("To repeat the program press "
                "enter or any other key to end it")


   else:
    print ("Sorry, I don't understand.")
    

print("The program has ended.")