\text{Konštrukčne určte uhol priamok. }

\text{Postup

\text{Pohybujte bodom }B.

A = (0, 0)
t = OrthogonalLine(A, xAxis)
L_{1} = (4, 0)
f = Line(A, L_{1})
B = Point(f)
L' = Rotate(L_{1}, 45°, B)
α = Angle(L_{1}, B, L')
g = Ray(B, L')
c_1 = Circle(B, (1 / 2 * Distance[A, B]))
I = Intersect(c_1, g)
C: I
h = Line(A, g)
i = Line(C, f)
D = Intersect(h, i)
j = Line(D, t)
k = Line(B, j)
l = Line(C, k)
E: (x(A), Distance[A, B])
m = Line(E, f)
F = Intersect(k, m)
n = Line(F, g)
G = Intersect(l, n)
p = Line(G, i)
q = Line(E, h)
H = Intersect(q, p)
r = Segment(A, B)
s = Segment(B, C)
a = Segment(C, G)
b = Segment(G, H)
c = Segment(H, E)
d = Segment(E, A)
e = Segment(E, F)
f_1 = Segment(F, B)
g_1 = Segment(F, G)
h_1 = Segment(A, D)
i_1 = Segment(D, H)
j_1 = Segment(D, C)
M = Midpoint(D, H)
L = Midpoint(E, A)
N = Midpoint(C, G)
k_1 = Line(A, M)
l_1 = Line(H, N)