Hình 24

B_2 = (8.28890909090909, -1.0854545454545483)
B = (0.7689090909090914, -0.8054545454545485)
O = (4.688909090909092, 0.2345454545454514)
D = (6.1089090909090915, -1.0254545454545485)
d = Circle(O, D)
F = (11.328909090909091, -0.7854545454545483)
H = (16.48890909090909, -1.1854545454545484)
L = Point(d)
i = Segment(L, O)
j = OrthogonalLine(L, i)
R = Point(j)
S = (3.3689090909090913, 4.654545454545451)
k = Segment(L, R)
l = Segment(L, S)
γ = Angle(R, L, S)