\(\angle RAG = \angle ZAG - \angle ZAR\)
\(\angle ZAR\) = 180° - \(\angle ZAB\) - \(\angle BAR\) = 180° - 110° = 70°
\(\angle ZAG\) = 180° - \(\angle ZAB\) - \(\angle BAG\) = 180° - 30° = 150°
\(\angle RAG\) = 150° - 70° = 80°
Ответ: 80°