a = 4 (slider from 3 to 10, step 1)
A = (1.6544115669782706, -2.513401431349167)
B = (6.569901704235609, -2.41694034919861)
b = Segment(A, B)
многоъгълник1, a_1, b_1, c, d, C, D = Polygon(A, B, a)
M = Point(многоъгълник1)
N = Point(многоъгълник1)
многоъгълник2, h, g_1, i, J = Polygon(M, N, 3.0)
j = LineBisector(b)
k = LineBisector(b_1)
K = Intersect(k, j)
l = Segment(K, M)
m = Segment(K, B)
n = LineBisector(g_1)
p = LineBisector(h)
L = Intersect(n, p)
A'_1 = Mirror(A, k)
B'_1 = Mirror(B, k)
C'_1 = Mirror(C, k)
A'_2 = Mirror(A, j)
B'_2 = Mirror(B, j)
C'_2 = Mirror(C, j)
D'_2 = Mirror((5.010382387024907, 0.7876224213360938), j)
J' = Mirror(J, j)
A' = Mirror(A, j)
B' = Mirror(B, j)
C' = Mirror(C, j)
t = Segment(A'_1, N)
E = (10.873183370762852, 3.8479436059360883)
F = (12.032058040709886, 3.057371245084556)
H = (10.82912807063181, 4.090247756656813)
M_1 = (10.6901536238548, 2.880288963694193)
N_1 = (11.313736372073262, 4.530800757967224)
O = (10.873183370762852, 3.6496947553464034)
P = (10.763045120435248, 4.420662507639621)
Q = (11.425877136043189, 4.158333220495694)
R = (10.80710042056629, 4.2884966072465005)
S = (11.049404571287013, 4.486745457836182)
T = (11.558043036436308, 4.33455442101986)
U = (10.756236574051366, 2.4837912625148224)
V = (11.359794185846624, 3.717780219185284)
W = (12.273741412201495, 1.8476127034861674)
Z = (12.220434499042936, 2.1408007258582455)
A_1 = (11.447484258243819, 2.0075334429618463)
B_1 = (12.318417491561656, 3.0793988951500766)
C_1 = (11.161545335256939, 3.8279184695128867)
D_1 = (11.205600635387981, 4.136305570430173)
E_1 = (12.273741412201495, 1.6077315942726487)
F_1 = (11.554098084560938, 1.714345420589768)
G_1 = (11.314216975347419, 3.1802855324501604)
H_1 = (11.953899933250137, 2.380681835071764)
I_1 = (11.500791171402378, 2.5939094877060036)
J_1 = (11.42083080166454, 2.0608403561204063)
K_1 = (11.50079117140238, 2.354028378492484)

Tool: ГМТоъ
Input: A, B, α
Output: e, f

a = Segment(A, B)
B' = Rotate(B, -(α), A)
b = Segment(A, B')
c = OrthogonalLine(A, b)
d = LineBisector(a)
C = Intersect(c, d)
C' = Mirror(C, a)
e = CircleArc(C, B, A)
f = CircleArc(C', A, B)