P

Q

M

φ

Umfangswinkel < 90°

μ

Mittelpunktswinkel < 180°

Sehne AB

Start

Sehnentangentenwinkel

A

B

C

ε'

Wandernde Sehne

Der Kreisbogen AB ist blau gefärbt.

M = (-3.1748965588279416, -0.2572112417744736)
r = 2.2 (slider from -5 to 5)
c = Circle(M, r)
A = Point(c)
B = Point(c)
h = Segment(B, A)
b' = CircleArc(M, B, A)
C = Point(b')
k = Segment(C, A)
l = Segment(C, B)
δ = Angle(A, C, B)
w_2 = false
b = CircleArc(M, A, B)
f = Segment(A, M)
g = Segment(M, B)
α = Angle(A, M, B)
w_3 = false
w_1 = false
n = OrthogonalLine(B, g)
p = OrthogonalLine(A, f)
D = Point(p)
E = Point(p)
F = Point(n)
G = Point(n)
q = Segment(D, E)
s = Segment(F, G)
ε = Angle(E, A, B)
η = Angle(M, B, F)
ζ = Angle(E, A, M)
anim = true
H = Point(c)
w_4 = false
t = 0.3 (slider from -5 to 5)
β = Angle(A, B, F)