A = (0, 0)
b = 6.9
C: (b, 0)
Aangle = 0.6806784082777885 rad
Cangle = 0.9075712110370514 rad
C' = Rotate(C, Aangle, A)
α = Angle(C, A, C')
a = Line(C', A)
A' = Rotate(A, (-Cangle), C)
β = Angle(A', C, A)
c = Line(A', C)
B = Intersect(a, c)
poly1, c_1, a_1, b_1 = Polygon(A, B, C)
γ = Angle(A, B, C)
text1: "Construct triangle ABC, when known are:
Angle A = " + Aangle + "
Side b = " + b + "
Angle C = " + Cangle + "

Results are:
Angle B = " + γ + "
Side a = " + a_1 + "
Side c = " + c_1 + ""