A = Point(yAxis)
B = (0, 0)
C = (10, 0)
D = (10, 10)
q1, a, b, c, d = Polygon(A, B, C, D)
f = Segment(A, C)
g = Line(D, f)
e = Circle(A, C)
E = Intersect(e, g, 2)
h = Segment(A, E)
i = Segment(E, C)
j = Segment(D, E)
F = Intersect(c, h)