A = (-0.22, 3.98)
B = (-1.7, -3.74)
a = Segment(A, B)
C = (11.68, -4.24)
b = Segment(B, C)
c = Segment(A, C)
E = Midpoint(a)
F = Midpoint(c)
G = Midpoint(b)
d = Segment(E, G)
e = Segment(G, F)
f = Segment(E, F)
texte1: "aire(ABC) =" + (Area[A, B, C])
texte2: "aire(EFG) =" + (Area[E, F, G])