A = (1, 1)
B = (9, 1)
C = (4, 4)
t1, c, a, b = Polygon(A, B, C)
f = Line(C, xAxis)
α = Angle(B, A, C)
β = Angle(C, B, A)
γ = Angle(A, C, B)
D = Point(f)
E = Point(f)
t2, c_1, a_1, d = Polygon(A, D, C)
t3, e, b_1, c_2 = Polygon(B, C, E)
δ = Angle(D, C, A)
ε = Angle(B, C, E)