\vec{a}

\vec{b}

A = (6, 1)
B = (4.5, 5)
C = (0, 0)
d1, c, a, b = Polygon(A, B, C)
D = Midpoint(b)
E = Midpoint(c)
F = Midpoint(a)
u = Vector(C, A)
v = Vector(C, B)
w = Vector(A, B)
d = Vector(C, E)
e = Vector(B, D)
f = Vector(A, F)
g: (2 / 3 * d)
S = Point(g)
G = (-2.266, 3.802)
H = (-1.026, 3.802)