Углы A{"color":"#202335","fontFamily":"stix","language":"ru"} и В{"color":"#202335","fontFamily":"stix","language":"ru"} треугольника АВС{"color":"#202335","fontFamily":"stix","language":"ru"} равны соответственно 71°{"color":"#202335","fontFamily":"stix","language":"ru"} и 79°{"color":"#202335","fontFamily":"stix","language":"ru"}. Найдите AВ,{"color":"#202335","fontFamily":"stix","language":"ru"} если диаметр окружности, описанной около треугольника АВС{"color":"#202335","fontFamily":"stix","language":"ru"}, равен 20.{"color":"#202335","fontFamily":"stix","language":"ru"}
