SSA

How many triangles can you create on the right that have
the given angle and two given sides (AB and BC)? Drag the 
point C' around to find them.

Change the shape of triangle ABC and test when it is possible
to form two triangles A'B'C' and when it you can only form one.

A_1 = (-4.792667740953626, -3.275271416101725)
B_1 = (17.51054705220924, -3.275271416101725)
a_1 = Line(A_1, B_1)
A = Point(a_1)
B = Point(a_1)
C = (-0.6856818966883403, 1.4306498637855816)
poly1, c, a, b = Polygon(A, B, C)
A' = Point(a_1)
d = Circle(A', c)
B' = Intersect(d, a_1, 2.0)
e = Segment(A', B')
C' = Point(Circle[B', a])
f = Segment(B', C')
α = Angle(B, A, C)
E' = Rotate(B', α, A')
β = Angle(B', A', E')
g = Ray(A', E')