A_1 = (-4.113579423373039, -1.3483560275426143)
B_1 = (9.958434189786317, -1.3643288012238393)
a = Line(A_1, B_1)
D = (-0.5995692135035051, 5.120617313353572)
b = OrthogonalLine(D, a)
C = Intersect(a, b)
c = Segment(D, C)
d = OrthogonalLine(D, c)
E = Point(d)
e = Segment(E, D)
f = OrthogonalLine(E, a)
F = Intersect(a, f)
h = Segment(E, F)
A = Point(a)
B = Point(a)
g = Segment(D, A)
i = Segment(D, B)
α = Angle(D, A, C)
β = Angle(D, B, C)
khoangcachAB = Distance(A, B)
Văn bảnAB: "\overline{" + (Name[A]) + (Name[B]) + "} \, = \, " + khoangcachAB
γ = Angle(A, D, B)