A = Intersect(yAxis, xAxis)
B = PointIn(Sphere[A, 14.8])
f = Segment(A, B)
F = Midpoint(A, B)
g = OrthogonalLine(F, xOyPlane)
c_1 = Circle(F, 6.8, yAxis)
C, E = Intersect(g, c_1)
d1, c, a, b = Polygon(A, B, C)
α = Angle(A, C, B)
h = Segment(F, C)
Text1: "A=0,5·c·h=0,5·" + c + "·" + h + "=" + d1 + "m²"