C = centro da rotação

θ = 190 (slider from -500 to 500, step 0.1)
B = (0.7018197225611489, 3.4436792743654676)
d = Circle(B, 1)
texto1: "" + θ + ""
imagem1' = Rotate(imagem1, θ°, B)
A = (1.40107669430621, 1.0739750923405404)
A' = Rotate(A, θ°, B)
c = Circle(B, A)
e = CircleArc(B, A, A')
f = CircleArc(B, A', A)
u = Vector(B, A)
v = Vector(B, A')