Angles on a Straight Line

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A = (2.16, -0.02)
B = (7.44, 0)
a = Line(A, B)
D = (5.16, 2.96)
g = Segment(A, D)
γ = Angle(B, A, D)
e = true
f = true
h = false
C = Point(a)
α = Angle(D, A, C)
text2: "∠CAD + ∠BAD = " + α + " + " + γ + " = " + (α + γ)