\text{V hľadanom štvorci }A'B'C'D: \overleftrightarrow{A'C'}⟂ \; \overleftrightarrow{B'D'}

1. \; \overleftrightarrow{AC}∩o=1;\overleftrightarrow{DB}∩o=2

2. \; \text{Tálesova }k_1=(S_1_2,r=1S_1_2)

\text{V hľadanom štvorci }A'B'C'D: \overleftrightarrow{S'S'_A_B}⟂ \; \overleftrightarrow{S'S'_B_C}

3. \; \text{Samodružné } 3,4

4. \; \text{Tálesova }k_2=(S_3_4,r=3S_3_4)

5. \; S'=k_1∩k_2

6.  \; \text{Smer OA: }s=\overrightarrow{SS'}

7.  \; \text{Obrazy }A',B'  \; ... \;  C',D'

8. \; \text{Štvorec }A'B'C'D'

Q = (12, 2)
P = (-4, 2)
f = Line(P, Q)
A = (3.52, 7.84)
B = (3.06, 2.96)
c = Circle(B, A)
d = Circle(A, B)
C = Point(c)
g = Line(B, C)
h = Line(A, g)
D = Intersect(d, h, 2)
q1, a, b, c_1, d_1 = Polygon(A, B, C, D)
v = Line(D, B)
u = Line(A, C)
S = Intersect(v, u)