A = (-4.744576547031946, -3.5311436090683928)
B = (-4.668594395471182, -2.030496115743298)
C = (10.622813606132633, -1.9735095020727247)
D = (-0.0716742260449421, 0.7998390298951721)
E = (4.75319239806359, 3.8391250923257436)
α = Angle(E, C, D)
β = Angle(D, C, B)