6

A = Point(xAxis)
B = Point(yAxis)
C = Point(zAxis)
D = Intersect(yAxis, xAxis)
a = Segment(D, A)
b = Segment(D, C)
c = Segment(D, B)
d = Segment(A, B)
e = OrthogonalLine(D, d, space)
H = Intersect(d, e)
f = Segment(D, H)
α = Angle(A, H, D)
g = Segment(A, C)
β = Angle(B, A, C)
h = Segment(B, C)
i = Segment(C, H)
poly1, c_1, a_1, h_1 = Polygon(A, H, C)
γ = Angle(C, H, A)
δ = Angle(C, D, H)
poly2, h_2, c_2, j = Polygon(C, (0, 0), H)
ε = Angle(B, H, C)