cos x = sqrt(2)/2

cos x = 1/2

cos x = sqrt(3)/2

sin x = 1/2

sin x = sqrt(2)/2

sin x = sqrt(3)/2

A = Intersect(xAxis, yAxis)
c = Circle(A, 1)
B = (0.5, 0)
C = (0.7071067811865476, 0)
D = (0.8660254037844386, 0)
e = OrthogonalLine(B, xAxis)
f = OrthogonalLine(C, xAxis)
g = OrthogonalLine(D, xAxis)
E = Intersect(c, e, 2)
F = Intersect(c, f, 2)
G = Intersect(c, g, 2)
H = Intersect(c, e, 1)
I = Intersect(c, f, 1)
J = Intersect(c, g, 1)
h = Segment(E, H)
i = Segment(F, I)
j = Segment(G, J)
k = Segment(A, E)
K, L = Intersect(c, xAxis)
α = Angle(L, A, E)
β = Angle(L, A, H)
l = Segment(A, H)
b = Segment(A, F)
d = Segment(A, I)
γ = Angle(L, A, F)
δ = Angle(L, A, I)
m = false
a = false
n = Segment(A, G)
p = Segment(A, J)
ε = Angle(L, A, G)
ζ = Angle(L, A, J)
o = false
P = (0, 0.5)
q = Line(G, P)
M = Intersect(c, q, 2)
r = Segment(M, G)
s = Segment(A, G)
t = Segment(A, M)
η = Angle(L, A, G)
θ = Angle(L, A, M)
u = false
Q = (0, 0.7071067811865476)
a_1 = Line(F, Q)
N = Intersect(c, a_1, 2)
b_1 = Segment(F, N)
c_1 = Segment(A, N)
d_1 = Segment(A, F)
ι = Angle(L, A, F)
κ = Angle(L, A, N)
v = false
R = (0, 0.8660254037844386)
e_1 = Line(E, R)
O = Intersect(c, e_1, 2)
f_1 = Segment(E, O)
g_1 = Segment(A, E)
h_1 = Segment(A, O)
λ = Angle(L, A, E)
μ = Angle(L, A, O)
w = false