Einführung Höhen
Author: Mohr Matthias

A = (3.0036012469096454, 10.013990806154096)
B = (11.003601246909653, 10.013990806154096)
C = (13.003601246909653, 15.013990806154098)
D = (5.003601246909645, 15.013990806154098)
Vieleck1, a, b, c, d = Polygon(A, B, C, D)
e = Line(B, C)
f = Line(A, B)
E = Point(c)
g = OrthogonalLine(E, f)
F = Intersect(g, f)
h_a = Segment(E, F)
α = Angle(E, F, A)
G = Point(d)
h = OrthogonalLine(G, e)
H = Intersect(e, h)
h_b = Segment(G, H)
β = Angle(C, H, G)