An C_n ziehen!

A: (-4, 0)
B: (4, 0)
a = Segment(A, B)
C_1 = Point(a)
C: (0, 10)
poly1, d, a_1, b_1 = Polygon(A, B, C)
M: (0, 0)
f = Segment(C, M)
C_n = Point(f)
u = Vector(C, C_n)
g = Segment(C, C_n)
c = Circle(A, g)
e = Circle(B, g)
A_n = Intersect(c, xAxis, 1)
B_n = Intersect(e, xAxis, 2)
v = Vector(A, A_n)
w = Vector(B, B_n)
d1, b_n, c_n, a_n = Polygon(C_n, A_n, B_n)
Text2: "Flächeninhalt des Dreiecks A_nB_nC_n: " + d1 + " cm²"