Диагонали некоторой трапеции равны 5 см и 12 см, а основания 3 см и 10 см. Найдите углы между диагоналями этой трапеции.

The work of the national poet of Belarus Yakub Kolas made a whole epoch in the history of
Belarusian literature. This man's life and work became a significant contribution to the Belarusian culture. The merit of Yakub Kolas as a national writer was in revealing Belarusian written word to the developed literary world and praising Belarusian people.