gleichseitiges Dreieck

A = (-1.6400000000000001, -0.16)
B = Point(Circle[A, 6])
c = Segment(A, B)
a_1 = LineBisector(c)
d = Circle(A, B)
C = Intersect(d, a_1, 2)
b = Segment(C, A)
a = Segment(C, B)
α = Angle(B, A, C)
β = Angle(A, C, B)
γ = Angle(C, B, A)