Ein Arbelos

mit seiner Höhe

und den sogenannten Zwillingen

A = (-2, 0.5)
B = (11.5, 0.5)
a_1 = Segment(A, B)
C = Point(a_1)
c = Semicircle(A, B)
F = Midpoint(A, C)
d = Semicircle(A, C)
D = Midpoint(C, B)
e = Semicircle(C, B)
b_1 = OrthogonalLine(C, a_1)
M = Intersect(c, b_1, 1.0)
m = Segment(C, M)
a = Segment(F, C)
b = Segment(C, D)
f = OrthogonalLine(D, a_1)
E = Intersect(e, f, 1.0)
L = Midpoint(D, E)
j = Segment(D, E)
g = Segment(F, E)
G = Intersect(b_1, g)
ρ = Segment(C, G)
h = Circle(C, G)
H = Intersect(h, a_1, 1.0)
i = Line(H, b_1)
I = Intersect(h, a_1, 2.0)
k = Circle(F, I)
J = Intersect(k, i, 2.0)
p = Circle(J, ρ)
l = Line(I, b_1)
r = Circle(D, H)
K = Intersect(r, l, 2.0)
q = Circle(K, ρ)