A = Intersect(xAxis, yAxis)
D = Point(yAxis)
C = (6, 6)
a = Segment(D, C)
B = (6, 0)
b = Segment(C, B)
c_1 = Segment(B, A)
d = Segment(A, D)
c = CircleArc(D, A, C)
T = Point(c)
e = Segment(D, T)
f = OrthogonalLine(T, e)
N = Intersect(f, b)
M = Intersect(f, c_1)
α = Angle(A, D, T)
g = Distance(N, M)
h = Distance(M, N)
MN = Distance(M, N)