A = (-0.21457687684911297, -2.6485966161242596)
C = (8.999574241863904, -2.874988535502957)
a = Segment(A, C)
b = OrthogonalLine(A, a)
B = Point(b)
c = Segment(B, A)
d = Segment(B, C)
α = Angle(C, A, B)
E = Point(a)
D = Point(c)
e = Segment(B, E)
f = Segment(D, E)
khoangcachBC = Distance(B, C)
Văn bảnBC: "\overline{" + (Name[B]) + (Name[C]) + "} \, = \, " + khoangcachBC
khoangcachBE = Distance(B, E)
Văn bảnBE: "\overline{" + (Name[B]) + (Name[E]) + "} \, = \, " + khoangcachBE
khoangcachDE = Distance(D, E)
Văn bảnDE: "\overline{" + (Name[D]) + (Name[E]) + "} \, = \, " + khoangcachDE