A = Intersect(xAxis, yAxis)
B = Point(xAxis)
Vieleck1, a, b, c, d, C, D = Polygon(A, B, 4)
e = CircleArc((0, 0), (0, 2), (-2, 0))
f = CircleArc(C, C + (0, 2), C + ((-2), 0))
g = CircleArc(B, A - (2, 0), C + (0, 2))
Liste: {e, f, g}
E = Point(Liste)
h = Segment(B, E)
i = Segment(C, E)
j = Segment(A, E)