Beinchenwinkel
90°-68°=22°

oder ∡HAB=68°

M = (-2.4271209244286354, 1.5216694697224329)
c = Circle(M, 3.5)
A = Point(c)
a = Segment(M, A)
b = OrthogonalLine(A, a)
M' = Rotate(M, 338.0*°, A)
α = Angle(M', A, M)
d = Ray(A, M')
B_1, B = Intersect(c, d)
e = LineBisector(A, B)
F = Intersect(d, e)
f = Circle(F, 4.0)
D, E = Intersect(f, e)
h = OrthogonalLine(E, e)
C_2, C_1 = Intersect(c, h)
Vieleck1, g, a_1, b_1 = Polygon(A, B, C_1)
Vieleck2, f_1, a_2, b_2 = Polygon(A, B, C_2)
H = Point(b)
β = Angle(H, A, B)