r

r

Hilfe

M = (-13.5, 2)
r_1 = 1.8 (slider from 0 to 5)
k = Circle(M, r_1)
A_1 = Point(k)
f = Line(A_1, M)
A, B = Intersect(k, f)
g = Segment(A, B)
P = Point(k)
d = CircleArc(M, B, A)
h = Segment(A, P)
i = Segment(P, B)
α_1 = Angle(A, P, B)
r = Segment(P, M)
α = Angle(M, A, P)
β = Angle(P, B, M)
γ_1 = Angle(A, P, M)
γ_2 = Angle(M, P, B)
δ_1 = Angle(P, M, A)
δ_2 = Angle(B, M, P)
j = Segment(A, M)
k_1 = Segment(M, B)
a = false