A = (-3.3399999999999994, 0.84)
B = (6.96, 0.62)
C = (6.18, 5.600000000000001)
poly1, c, a, b = Polygon(A, B, C)
D = (6.117999999999999, 2.3820000000000023)
d = OrthogonalLine(D, a)
e = OrthogonalLine(D, b)
f = OrthogonalLine(D, c)
E = Point(d)
F = Point(e)
g = Line(E, F)
g' = Mirror(g, e)
G = Intersect(f, g')
g'' = Mirror(g', f)