straal = 3 (slider from 0 to 5, step 0.1)
A = (0, 0)
c = Circle(A, straal)
B = Point(c)
C = Point(c)
D = Point(c)
f = Segment(C, D)
g = LineBisector(C, D)
E = Intersect(g, f)
h = Segment(C, E)
i = Segment(E, D)
F = Intersect(c, g, 2)
G = Intersect(c, g, 1)
j = Segment(F, G)
H = (0.34361719977670135, -1.0607386888273134)
k = Segment(H, D)
l = Segment(H, E)
m = Segment(H, C)
α = Angle(G, E, D)
β = Angle(H, E, A)
γ = Angle(H, E, C)
δ = Angle(G, E, D)
stap = 7 (slider from 0 to 7, step 1)