A = Intersect(xAxis, yAxis)
B = (2, 0)
c = Circle(A, B)
C = Point(xAxis)
D = Point(xAxis)
d = Circle(C, D)
E = Intersect(c, yAxis, 2)
F = Point(d)
f = Segment(E, F)
G = Intersect(c, yAxis, 1)
H = Point(d)
g = Segment(G, H)
kuvio1, g_1, h, f_1, e = Polygon(G, H, F, E)