Ül. 2

☞Joonisel \; saab \; liigutada \; punkte \; S \; ja \; V, \et \; näha \; punktide \; T \; ja \; U \; muutumist \; nurga \; haaradel.

A = (0, 0)
B = (-2.36, 3.78)
f = Ray(A, B)
C = (6, 1)
g = Ray(A, C)
S = (-0.88, 3.4)
V = (4.5, 3.92)
S_1 = Mirror(S, f)
V_1 = Mirror(V, g)
h = Segment(A, S)
i = Segment(A, V)
j = Segment(S, S_1)
k = Segment(V, V_1)
l = Segment(S_1, V_1)
T = Intersect(f, l)
U = Intersect(g, l)
m = PolyLine(S, T, U, V)
n = Segment(S_1, T)
p = Segment(U, V_1)