α

α

α

A = (-8, -6)
B = (0, -6)
D = (-8, 2)
C = (0, 2)
c = Circle(D, 8)
d = Circle(C, 8)
e = Circle(B, 8)
E, F_1 = Intersect(c, d)
F, H = Intersect(d, e)
f = Segment(A, B)
g = Segment(B, C)
h = Segment(C, D)
i = Segment(D, A)
j = Segment(D, E)
k = Segment(E, C)
l = Segment(C, F)
m = Segment(F, B)
n = Segment(A, E)
p = Segment(E, F)
q = Segment(F, A)
α = Angle(C, D, E)
β_1 = Angle(A, D, C)
γ = Angle(C, B, A)
δ = Angle(F, B, C)
ε = Angle(B, C, F)
ζ = Angle(E, C, D)
η = Angle(D, C, B)
β = Angle(F, C, E)