Figuur I

Figuur II

D: (-4, -15)
B_1: (8, -15)
f = Line(D, B_1)
straal = 3 (slider from 0 to 5, step 0.1)
A = Point(f)
c = Circle(A, straal)
B = Intersect(c, f, 2)
H = Point(f)
d = Circle(H, straal)
J = Intersect(d, f, 2)
I = Intersect(d, f, 1)
r_1 = Segment(I, J)
b = OrthogonalLine(H, r_1)
afstand = 1.1 (slider from 0 to (0.5 * straal), step 0.1)
e = Circle(H, afstand)
E = Intersect(e, b, 1)
r = Circle(H, (2 * afstand))
W = Intersect(r, b, 2)
C = Intersect(c, f, 1)
g = Segment(A, B)
h = Segment(A, C)
i = Line(E, f)
j = Line(W, f)
F = Intersect(c, j, 2)
m = Segment(F, A)
G = Intersect(c, i, 2)
p = Segment(G, A)
K = Intersect(d, j, 1)
L = Intersect(d, j, 2)
M = Intersect(d, i, 1)
N = Intersect(d, i, 2)
s = Segment(L, K)
t = Segment(N, M)
O = Intersect(i, b)
Q = Intersect(e, b, 2)
f_1 = Line(Q, r_1)
R = Intersect(d, f_1, 1)
S = Intersect(d, f_1, 2)
g_1 = Segment(S, R)
P = Intersect(r, b, 1)
i_1 = Segment(O, H)
j_1 = Segment(H, Q)
T = (4, -11)
U: (5.5, -11)
a = Segment(T, U)
V = (7, -11)
k_1 = Segment(U, V)
γ = Angle(F, A, G)
h_1 = Segment(W, O)
Z = Intersect(c, j, 1)
l = Segment(Z, A)
k = Segment(F, Z)
A_1 = Intersect(c, i, 1)
q = Segment(G, A_1)
n = Segment(A, A_1)
α = Angle(F, A, Z)
β = Angle(Z, A, A_1)