Аналоги формулы Лобачевского для угла параллельности на гиперболической плоскости положительной кривизны

It is shown that on hyperbolic plane $\widehat {H}$ of positive curvature exists fifteen types of angles, angles of six types are measurable, angles of three types have the real measures. For quasiangles of parallelism, angles of quasiparallelism and angles of parallelism of the plane $\widehat{H}$ analogs of a formula of Lobachevsky are received.