Góc X = 

Đo góc X

AB // CD

A = (11.60400535309672, -2.6235066590807867)
B_1 = (23.868401334967427, -2.5562430613740004)
a = Ray(A, B_1)
D_1 = Point(a)
C = Point(a)
E = (24.070192128087783, -4.282675402514849)
c = Circle(C, E)
F = Intersect(c, a, 2.0)
F' = Rotate(F, 67.0*°, C)
α = Angle(F, C, F')
b = Ray(C, F')
d = Line(A, b)
G = Midpoint(A, C)
e = OrthogonalLine(G, a)
B = Intersect(d, e)
f = Segment(B, A)
g = Segment(B, C)
X = Angle(A, B, C)
text2: X + ""
h = false
D = Point(b)