a)

b)

c)

A = (21.755343862068283, 14.37179057648713)
B = (18.591020103041558, 3.0505433497470644)
C = (38.49110063203186, 2.9802250439909157)
đa giác1, c, a, b = Polygon(A, B, C)
d = Distance(a, b)
chuvidagiacđa giác1 = Perimeter(đa giác1)
α_1 = Angle(C, B, A)
β_1 = Angle(A, C, B)
α = Angle(B, A, C)
D = (42.92115389466928, 2.980225043990915)
F = (73.08770706405744, 3.050543349747064)
e = Segment(D, F)
E' = Rotate(F, α, D)
γ = Angle(F, D, E')
f = Ray(D, E')
β = Angle(A, C, B)
D' = Rotate(D, -(β), F)
δ = Angle(D', F, D)
g = Ray(F, D')
E = Intersect(f, g)
đa giác2, d_1, e_1, f_1 = Polygon(F, E, D)
h = Distance(b, c)
i = Distance(e_1, f_1)
j = Perimeter(đa giác1)
G = (78.43189830152475, 3.191179961259363)
H = (101.42598428378564, 3.61308979579626)
I = (84.19799937352902, 18.801843839124547)
đa giác3, i_1, g_1, h_1 = Polygon(G, H, I)
ε = Angle(H, G, I)
k = Distance(h_1, i_1)