Inhalt

A = (-7, 4)
B = (3, -3)
C = (6, 6)
d1, c, a, b = Polygon(A, B, C)
f = OrthogonalLine(B, b)
g = OrthogonalLine(C, c)
h = OrthogonalLine(A, a)
i = Line(A, C)
j = Line(C, B)
k = Line(B, A)
D = Intersect(h, j)
E = Intersect(f, i)
F = Intersect(g, k)
l = Segment(A, D)
m = Segment(E, B)
n = Segment(C, F)
u: a + b + c
Text1: "Flächenumfang = " + u + "
Flächeninhalt = " + d1 + ""