VzorSchodiste

f = OrthogonalLine((0, 0, 0), xOyPlane)
A = Intersect(xAxis, yAxis)
c = Circle(A, 3)
B = Point(c)
C = Rotate(B, 36°, A)
α = Angle(B, A, C)
t1, c_1, a, b = Polygon(A, B, C)