A = (-3, -2)
B = (2, -2)
f = Segment(A, B)
C = (3.76, 1.02)
g = Segment(B, C)
h = Line(C, f)
i = Line(A, g)
D = Intersect(h, i)
q1, a, b, c, d = Polygon(A, B, C, D)
j = Segment(A, C)
k = Segment(B, D)
E = Intersect(j, k)
α = Angle(A, E, B)
u = Vector(D, C)
A' = Translate(A, u)
B' = Translate(B, u)
C' = Translate(C, u)
D' = Translate(D, u)
q1', a', b', c', d' = Polygon(A', B', C', D')
l = Segment(C, B')
m = Segment(A, C)
β = Angle(A, C, B')