Umfangswinkel

Mittelpunktswinkel

Sehnentangentenwinkel

IMP9 geo

Kreiswinkel erkunden - E3

M = (-0.933043723440327, 0.3526349929848294)
r = 2 (slider from -5 to 5)
c = Circle(M, r)
A = Point(c)
B = Point(c)
f = Segment(A, B)
d = CircleArc(M, A, B)
e = CircleArc(M, B, A)
C = Point(e)
g = Segment(A, C)
h = Segment(B, C)
φ = Angle(A, C, B)
i = Segment(A, M)
j = Segment(B, M)
μ = Angle(A, M, B)
Text1: "μ=" + μ + ""
t = OrthogonalLine(A, i)
Text2: "φ=" + φ + ""
D = Point(t)
ε = Angle(D, A, B)
Text3: "ε=" + ε + ""