A = (0, -2)
B = (12, -2)
C = (2, 3)
t1, a, b, c = Polygon(A, B, C)
α = Angle(B, A, C)
f_1 = Line(A, B)
g = OrthogonalLine(C, f_1)
D = Intersect(f_1, g)
h = Segment(C, D)
i = Segment(A, B)
pole: ((1 / 2 * a) * h)
tekst1: "P = " + a + "*" + h + "/2 = " + pole + ""
pole2: ((1 / 2 * (a * c)) * sin(α))
tekst2: "P = 1/2acsinα = " + pole2 + ""