A_1 = (3.52, -2.52)
B_1 = (8.96, -2.54)
d = Line(A_1, B_1)
A = (2.58, 3.44)
B = Point(d)
b = OrthogonalLine(A, d)
c = Segment(A, B)
H = Intersect(d, b)
d_1 = Segment(A, H)
α = Angle(B, H, A)