x_{C}

y_{C}

x_{P}

y_{P}

r

x_{C} = 2 (slider from -5 to 5, step 0.1)
y_{C} = 1 (slider from -5 to 5, step 0.1)
x_{P} = 5 (slider from -5 to 10, step 0.1)
y_{P} = 2 (slider from -5 to 10, step 0.1)
C: (x_{C}, y_{C})
P: (x_{P}, y_{P})
A: (x(C), 0)
B: (0, y(C))
D: (x(P), 0)
E: (0, y(P))
a = Segment(C, A)
b = Segment(B, C)
c = Segment(P, D)
f = Segment(P, E)
r = 2 (slider from -5 to 5, step 0.1)
λ = Circle(C, r)
F = Point(Circle[C, r])
e = Segment(C, F)
d = Segment(C, P)
texto1: "d_{CP}=" + (LaTeX[d]) + ">r=" + (LaTeX[r]) + "⇒P\ é\ externo\ a\ \lambda"
texto2: "d_{CP}=" + (LaTeX[d]) + " =r=" + (LaTeX[r]) + " ⇒P\ \in \lambda"
texto3: "d_{CP}=" + (LaTeX[d]) + " <r=" + (LaTeX[r]) + " ⇒P\ é\ interno\ a\ \lambda"