punto medio

mediana

A = (-6.16, -0.42)
B = (6.56, -1.68)
C = (-1.4, 2.2)
t1, c, a, b = Polygon(A, B, C)
D = Midpoint(b)
f = Segment(B, D)
E = Midpoint(c)
g = Segment(C, E)
F = Midpoint(a)
h = Segment(A, F)