B_1 = (117.14998662736197, 56.99499970180568)
A = (93.07356049289974, 129.5578176947997)
C = (147.89956408592832, 129.90926643578064)
a = Segment(A, C)
b = OrthogonalLine(C, a)
B = Point(b)
I = Midpoint(B, C)
c = Segment(B, I)
d = Segment(I, C)
e = Segment(A, B)
f = Segment(A, I)
α = Angle(B, C, A)