A = (-3, 5)
B = Point(Segment[A, (x(A) + 10, y(A))])
f = Segment(A, B)
C: (13, y(A))
D = Point(Segment[C, (x(C) - 10, y(C))])
g = Segment(C, D)
E: ((x(A) + x(C)) / 2, y(A) - 2)
F = Point(Segment[E, (x(E) + 5, y(E))])
G = Mirror(F, E)
j = Segment(G, F)
H = (-4.02, -1.58)
getal2: x(F) - x(G)
getal1: x(B) - x(A)
getal3: x(C) - x(D)