O = Intersect(xAxis, yAxis)
r = 2.4 (slider from 0 to 10)
R = 4.3 (slider from 0 to 15)
c = Circle(O, r)
A_1, T = Intersect(c, yAxis)
f = Line(T, xAxis)
d = Circle(O, R)
g: x = 4
A = Intersect(d, f, 1)
B = Intersect(d, f, 2)
a = Area(c)
Tekstc: "Oppervlakte van " + (Name[c]) + " = " + a
Puntc = PointIn(c)
b = Area(d)
Tekstd: "Oppervlakte van " + (Name[d]) + " = " + b
Puntd = PointIn(d)
C = Intersect(f, g)
h = Segment(A, B)