Y = 

Đáp số

A = (49.25556410897173, 14.718231781849607)
B = (49.397600553377956, -1.2845409545849924)
a = Segment(A, B)
b = OrthogonalLine(B, a)
C = Point(b)
c = Segment(A, C)
D = Point(c)
d = OrthogonalLine(D, a)
E = Intersect(d, a)
e = OrthogonalLine(A, a)
F = Point(e)
f = OrthogonalLine(F, e)
G = Intersect(b, f)
Y = Segment(F, G)
h = Segment(D, E)
i = Segment(C, B)
j = Segment(A, D)
k = Segment(D, C)
l = Segment(A, E)
m = Segment(E, B)
n = Distance(j, l)
α = Angle(A, E, D)
β = Angle(A, B, C)
text2: Y + ""
g = false