A_1 = (2.5518117802064495, -0.6631056274036135)
B_1 = (5.160892211026235, -0.6825763768873432)
a = Line(A_1, B_1)
A = (-1.634399358795445, 0.12545972668744115)
C = (3.3403771342975044, 3.678871507468119)
b = OrthogonalLine(C, a)
c = OrthogonalLine(A, a)
H = Intersect(a, c)
B = Intersect(a, b)
d = Segment(A, H)
e = Segment(A, C)
f = Segment(A, B)
α = Angle(B, H, A)
β = Angle(B, A, C)
khoangcachHB = Distance(H, B)
Văn bảnHB: "\overline{" + (Name[H]) + (Name[B]) + "} \, = \, " + (khoangcachHB * 4.0)