area of shape

def area_of_circle():
    radius=int(input("Enter the radius of the circle:"))
    area=3.14*radius*radius
    print(area)
def area_of_square():
    side=int(input("Enter the side of square:"))
    area=side*side
    print(area)
def area_of_rectangle():
    length=int(input("Enter the length of rectangle:"))
    breath=int(input("Enter the breath of rectangle"))
    area=length*breath
    print(area)
def area_of_triangle():
    base=int(input("enter the base of triangle:"))
    height=int(input("enter the height of triangle"))
    area=0.5*base*height
    print(area)
choice=int(input("For area of circle press 1 \n For area of rectangle press 2 \n for area of square press 3 \n for area of triangle press 4 \n enter your choice:"))
if choice==1:
    area_of_circle()
if choice==2:
    area_of_rectangle()
if choice==3:
    area_of_square()
if choice==4:
    area_of_triangle()