A = Point(a)
you = (-0.52, 2.42)
tent = (5.08, 1.5)
b = Segment(you, A)
c = Segment(A, tent)
d = Ellipse(you, tent, (b + c) / 2)
SamletAfstand: b + c
tekst1: SamletAfstand + ""
tent' = Mirror(tent, a)
e = Segment(you, tent')