Enakostranični trikotnik

A = (-2.92, 1.3)
B = (2.06, -1.34)
a = Segment(A, B)
c = Circle(A, B)
d = Circle(B, A)
C, D = Intersect(c, d)
mnogokotnik1, c_1, a_1, b = Polygon(A, B, C)
α = Angle(B, A, C)
β = Angle(C, B, A)
γ = Angle(A, C, B)