A = (4.54, 2.46)
B = (8.28, -0.7)
C = (9.08, 3.94)
veelhoek1, c, a, b = Polygon(A, B, C)
d = OrthogonalLine(A, a)
e = OrthogonalLine(C, c)
f = OrthogonalLine(B, b)
Hoogtepunt = Intersect(e, f)