$\scalebox{2} {%n}$

$\scalebox{2} {%n}$

$\scalebox{2} {%n}$

$\alpha$

$\beta$

A = (-0.68, 1.84)
B = (2.8, 2.62)
f = LineBisector(A, B)
C = Point(f)
g = Ray(C, A)
h = Ray(C, B)
i = Segment(A, B)
D = Point(g)
c = Circle(C, D)
E = Intersect(c, h, 1)
α = Angle(D, A, B)
β = Angle(A, B, E)
j = Segment(C, D)
k = Segment(C, E)
F = Point(h)
l = Segment(C, F)