#this program will calculate the area, perimeter and circumference of a shape
#Find out user what shape they want to calculate
shape = input("Enter s for square, r rectangle or c for circle ")
#Checking to see what shape is being calculated and asked for user input
if shape== "s":
    print("square")
    length=float(input("what is the length? "))
    area= length * length
    perimeter= length * 4
    shape = "square"
elif shape == "r":
    print("rectangle")
    length=float(input("what is the length? "))
    width=float(input("what is the width? "))
    area=length * width
    perimeter=(length + width)*2
    shape="rectangle"
elif shape == "c":
    print ("circle")
    radius=float(input("what is the radius? "))
    area=3.14 * radius**2
    circumference=3.14 * radius * 2
    shape="circle"
else:
    print("Doh! Invalid input")

#print statment of correct shape
    if shape == "square" or shape=="rectangle":
        print(f"the area of the {shape} is {area} , the perimeter is {perimeter}