# this program calculates the perimeter and area of different shapes

print ("this program calculates the perimeter and area of different shapes ")

shape = input("choose a shape from either, square (s), rectangle (r) or circle (c) ")

# Check user input

if shape == "s":
    print("square")
    side = float(input("enter the lenth of a side "))
    square_perimeter = side *4
    square_area = side **2
    print(f"the perimeter of a square with a lenth of {side}={square_perimeter} the area = {square_area}")
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}")
    
elif shape == "c":
    print ("circle")
    radius = float(input("enter the radius of the circle"))
    circumfrence = (2 * radius) * 3.14
    area = 3.14 * radius**2
    print (f"the circumfrence of the circle is {circumfrence:.2f} "
           f"the area is {area}")

else:
    print ("that is not a valid shape")

print ("the program has ended")