A = Intersect(xAxis, yAxis)
B: (0, 16)
D = Point(xAxis)
f = OrthogonalLine(D, xAxis)
C: (9, 10)
P = Point(xAxis)
g = Segment(B, P)
h = Segment(P, C)
a: Distance[B, P] + Distance[P, C]
M: (x(P), Distance[B, P] + Distance[P, C])
α = Angle(B, P, A)
β = Angle(D, P, C)