E = (27.914186665026442, -3.8941527371140356)
G = (27.38345675974904, -3.112024455652601)
A = (3.3888784106286134, -3.3634228318366337)
B = (13.3610139992619, -3.4192891376553076)
a = Segment(A, B)
b = OrthogonalLine(B, a)
O = Point(b)
c = Circle(O, B)
C = Point(c)
d = CircleArc(O, B, C)
e = Segment(O, B)
α = Angle(O, B, A)