a)

b)

c)

d)

E = (23.72425642324047, 11.488740040485)
F = (43.97592848101152, 11.066830205948106)
a = Segment(E, F)
c = Semicircle(E, F)
D = Point(c)
đa giác1, b, a_1, c_1 = Polygon(E, D, F)
E' = (53.11730822931094, 11.066830205948104)
F' = (84.26831767928516, 11.066830205948104)
d = Segment(E', F')
α_1 = Angle(F, E, D)
β = Angle(D, F, E)
E'_1 = Rotate(F', α_1, E')
γ = Angle(F', E', E'_1)
D'_1 = Rotate(E', -(β), F')
δ = Angle(D'_1, F', E')
e = Ray(E', E'_1)
f = Ray(F', D'_1)
D' = Intersect(e, f)
đa giác2, e_1, d_1, f_1 = Polygon(E', D', F')
ε = Angle(E, D, F)
ζ = Angle(E', D', F')
B' = (25.34157745563192, -7.848794042456105)
C' = (40.881923027740946, -7.848794042456103)
g = Segment(B', C')
h = Semicircle(B', C')
A' = Point(h)
đa giác3, h_1, g_1, i = Polygon(B', A', C')
η = Angle(B', A', C')
A = (57.47704318619222, -8.20038557123685)
C = (85.11213734835896, -9.395796769091392)
j = Segment(A, C)
k = OrthogonalLine(A, j)
α = Angle(A', C', B')
J' = Rotate(A, -(α), C)
θ = Angle(J', C, A)
l = Ray(C, J')
B = Intersect(k, l)
đa giác4, l_1, j_1, k_1 = Polygon(A, C, B)
ι = Angle(C, A, B)
m = Distance(a_1, b)
n = Distance(d_1, e_1)
o = Distance(i, h_1)
p = Distance(j_1, k_1)