Figuur I

E = (-5, -15)
A = (-8, -15)
c = Circle(A, E)
C = Point(c)
r = Line(C, A)
H = Intersect(c, r, 2)
c_1 = CircleArc(A, H, C)
B = Point(c_1)
d_1 = CircleArc(A, C, B)
F = Point(d_1)
e_1 = CircleArc(A, C, F)
f = Segment(B, C)
D = Point(e_1)
g = Segment(C, D)
h = Segment(D, B)
i = Segment(A, B)
j = Segment(C, A)
k = Segment(C, F)
l = Segment(F, B)
α = Angle(B, F, C)
β = Angle(C, D, B)
γ = Angle(B, A, C)
G = (-13.154884339382042, -18.539611628753285)