hai góc phụ nhau

A = (362.2832960843092, 178.760641432133)
B = (462.79763600486154, 180.1664363960568)
e = Ray(B, A)
C = Point(e)
D = (175.31256588244258, 194.92728351725683)
E = (291.6420991471378, 195.27873225823777)
a = Segment(D, E)
b = OrthogonalLine(D, a)
F = Point(b)
G = (252.63128889825208, 273.6518014969901)
c = Segment(D, G)
d = Segment(F, D)
α = Angle(E, D, G)
β = Angle(G, D, F)