Droite orthogonale à un plan

\mathcal{P}

\mathcal{D}

D = (-9.994961417997239, -5.073281467600804, 0.6087757034517267)
E = (5.6841909778910775, -7.06174851823177, 0.426142992416203)
F = (-0.7224028158481666, 0.7636256866100908, 1)
a = Plane(E, D, F)
f = Line(D, E)
A = PointIn(a)
g = Line(A, F)
B = Intersect(g, f)
h = OrthogonalLine(B, a)
α = Angle(h, f)
β = Angle(g, h)
C = Point(h)
G = PointIn(a)