O = Intersect(xAxis, yAxis)
C = Point(xAxis)
c = Circle(O, C)
E = Intersect(c, yAxis, 1)
C' = Intersect(c, xAxis, 2)
E' = Intersect(c, yAxis, 2)
B = Point(c)
a = Ray(O, B)
b = OrthogonalLine(B, xAxis)
A = Intersect(b, xAxis)
u = Vector(O, A)
v = Vector(A, B)
poly1, d, e, f, g, D, F = Polygon(B, A, 4)
θ = Angle(C, O, B)
poly2, h, o, j, k, G, H = Polygon(A, O, 4)
poly3, i, l, m, n, I, J = Polygon(O, B, 4)
r = Segment(O, B)
poly4, p, q, s, t, K, L = Polygon(B, O, 4)
poly5, a_1, b_1, c_1, d_1, M, N = Polygon(A, B, 4)
poly6, e_1, f_1, g_1, h_1, P, Q = Polygon(O, A, 4)
i_1 = Line(O, C)
j_1 = OrthogonalLine(O, i_1)