A = (-5.8659316936677515, -0.27479283538261556)
B = (12.01439259137397, -0.6606991149158902)
a = Segment(A, B)
C = Midpoint(a)
c = Circle(C, B)
D = Point(c)
b = Segment(D, A)
d = Segment(D, B)
e = OrthogonalLine(D, a)
E = Intersect(e, a)
h = Segment(D, E)
α = Angle(B, E, D)
β = Angle(A, D, B)
khoangcachDB = Distance(D, B)
khoangcachDA = Distance(D, A)
Văn bảnDA: "=" + khoangcachDA
X = Segment(A, E)
Y = Segment(E, B)
f = OrthogonalLine(A, a)
g = OrthogonalLine(B, a)
F = Point(f)
i = OrthogonalLine(F, f)
G = Intersect(g, i)
j = Segment(A, F)
k = Segment(B, G)
l = Segment(F, G)