$\theta_1$

$\theta_2$

\rho_2, \omega_2, \mu_2, g_2

\rho_1, \omega_1, \mu_1, g_1

$\theta_1$

$\theta_2$

$2\theta_1$

$\theta_1-\theta_2$

$\theta_1-\theta_2$

$\theta_1+\theta_2$

$2\theta_2$

$\theta_1+\theta_2$

\rho_2, \omega_2, R\mu_2, g_2

\rho_1, \omega_1, R\mu_1, g_1

A = Intersect(xAxis, yAxis)
B = Point(xAxis)
f = Segment(A, B)
C = Point(f)
D = (10, 7)
g = Segment(C, D)
E = Point(f)
h = Segment(E, D)
θ1 = Angle(B, E, D)
θ2 = Angle(B, C, D)
F = Point(yAxis)
G = (15, 12)
i = Segment(F, G)
H = Point(i)
I = (13, 5)
j = Segment(H, I)
J = (10, 5)
K = Point(i)
k = Segment(J, K)
L = (16, 14)
l = Segment(D, L)
M = Point(l)
m = Segment(D, M)
N = (7, 14)
n = Segment(D, N)
O = Point(n)
p = Segment(D, O)
P = Intersect(h, k)
Q = Point(k)
u = Vector(P, Q)
R = Point(p)
v = Vector(P, R)
α = Angle(Q, K, G)
β = Angle(I, H, G)
γ = Angle(R, P, Q)
δ = Angle(M, D, R)
S = Intersect(j, k)
w = Vector(S, I)
ε = Angle(Q, S, I)
T = Intersect(j, p)
ζ = Angle(I, T, R)
U = Intersect(j, m)
a = Vector(U, M)
V = Intersect(k, m)
η = Angle(I, U, M)
θ = Angle(Q, V, M)