A = (5, 3)
B = (5, 6)
c = Circle(A, B)
C = Intersect(c, xAxis, 1)
a = Segment(C, B)
B' = Rotate(B, 1*°, A)
α = Angle(B, A, B')
b = Segment(A, B')
Segmento = Segment(B', B)
contornoc = Circumference(c)
Textoc: "Circunf. " + (Name[c]) + " = " + contornoc + ""