import threading

def TriangleArea(base,hight):
    print((base * hight)/2)

def RectangleArea(width,hight):
    print(width*hight)

def RectangleDosArea(width,hight):
    print(width*hight)

def TriangleDosArea(base,hight):
    print((base * hight)/2)


tr = threading.Thread(TriangleArea(10,12))
tr2 = threading.Thread(TriangleDosArea(2,5))
rect = threading.Thread(RectangleArea(8,12))
rect2 = threading.Thread(RectangleDosArea(6,5))

tr.start
tr2.start
rect.start
rect2.start