circle and ellipse

all points on the circle are equidistant from the focus

the sum of the distances between  any given point and the foci are the same

focus = Intersect(xAxis, yAxis)
c = Circle(focus, 3)
B = Point(c)
radius = Segment(focus, B)
EF1 = Point(yAxis)
EF2 = Point(yAxis)
D = Point(xAxis)
d = Ellipse(EF1, EF2, D)
E, F = Intersect(d, yAxis)
G = Point(d)
g = Segment(EF1, G)
h = Segment(G, EF2)
sum: g + h