#shape perimter calulator v2

print ("this program calulates the preimeter and area of differnt shapes")

shape = input("choose a shape from square or circle ")

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

elif:
   print ("circle")
   radius =float(input("what is the radius "))
   area = (2 * radius) *3.141
   circumference = 3.141 * radius**2
   print (f"the area of the circle {area} the circumference is {circumference}")
else:
   print("that is not a valid shape")

print("program has eneded")