A = (-0.88, 3.74)
B = (6.48, 3.1)
C = (4.12, -0.68)
a = Segment(A, B)
b = Segment(B, C)
c = Segment(C, A)
d = Line(A, B)
e = OrthogonalLine(C, d)
D = Intersect(d, e)
E = Midpoint(b)
f = Line(E, e)