B = (32.93036738256852, 0.14631089682315168)
C = (39.119784193658695, 0.32416770173953524)
A = (41.4319226575717, 6.584727234796251)
đa giác3, i, g, h = Polygon(B, C, A)
l = Line(B, C)
m = OrthogonalLine(A, l)
H = Intersect(l, m)
n = Segment(A, H)
p = Segment(H, C)
L = (57.3323210170964, -5.224964611651646)
M = (60.46260078362476, -5.189393250668369)
q = Segment(L, M)
r = Circle(H, q)
N = Intersect(r, l, 2.0)
γ = Angle(N, H, A)