Прямые m{"color":"#202335","fontFamily":"stix","language":"ru"} и n{"color":"#202335","fontFamily":"stix","language":"ru"} параллельны (см. рисунок). Найдите ∠3{"color":"#202335","fontFamily":"stix","language":"ru"}, если ∠1=39°{"color":"#202335","fontFamily":"stix","language":"ru"}, ∠2=74°{"color":"#202335","fontFamily":"stix","language":"ru"}. Ответ дайте в градусах.
