O = (-1.0099173553718992, -0.4403305785123964)
B = (0.510743801652894, -0.42380165289256166)
i = Vector(O, B)
a = OrthogonalLine(O, i)
C = Point(a)
j = Vector(O, C)
b = Line(O, B)
c = Line(O, C)
α = Angle(B, O, C)