r

r

Hilfe

P'

P'

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)
d_1 = CircleArc(M, B, A)
j = Segment(A, M)
k_1 = Segment(M, B)
a = false
d = 0.3 (slider from 0 to 1, step 0.1)
c = Circle(M, r_1 - d)
P = Point(c)
α = Angle(A, P, B)
h = Segment(A, P)
i = Segment(P, B)
l = Line(A, P)
C = Intersect(k, d_1, 1)
D = Intersect(k, d_1)
E, F = Intersect(k, l)
m = Segment(A, F)
n = Segment(F, B)
β = Angle(A, F, B)
b = true