Figuur I

A = (-6, -14)
F = Point(Segment[A, (x(A) + 7, y(A))])
c = Circle(A, F)
B = Point(c)
f = Segment(A, B)
g = Line(B, A)
C = Intersect(c, g, 2)
h = Segment(A, C)
D = Point(c)
i = Segment(D, A)
j = Segment(D, B)
k = Segment(D, C)
α = Angle(C, D, A)
β = Angle(D, B, A)
γ = Angle(A, D, B)
δ = Angle(A, C, D)
E = (-14.150883245544756, -17.54361285990159)