 \sqrt{ 2 } 

 \sqrt{ 3 } 

 \sqrt{ 4 } =2

 \sqrt{ 5 } 

A = (8.86, -3.86)
B = (8.86, 1.08)
a = Segment(A, B)
b = OrthogonalLine(B, a)
c = Circle(B, A)
C = Intersect(c, b, 2)
d = Segment(C, A)
e = OrthogonalLine(C, d)
f = Circle(C, B)
D = Intersect(f, e, 1)
g = Segment(A, D)
h = OrthogonalLine(D, g)
α = Angle(D, C, A)
β = Angle(C, B, A)
k = Circle(D, C)
E = Intersect(k, h, 2)
i = Segment(E, A)
j = Segment(B, C)
l = Segment(C, D)
m = Segment(D, E)
n = OrthogonalLine(E, i)
p = Circle(E, D)
F = Intersect(p, n, 1)
q = Segment(E, F)
r = Segment(F, A)