A = (-1.42, 3.62)
B = Point(Circle[A, 6])
a = Segment(A, B)
B' = Rotate(B, 250*°, A)
α = Angle(B', A, B)
b = Ray(A, B')
c = Circle(A, 4)
C = Intersect(c, b, 1)
d = Line(C, a)
e = Line(B, b)
D = Intersect(d, e)
f = Segment(B, D)
g = Segment(D, C)
h = Segment(C, A)