Середина M{"color":"#202335","fontFamily":"stix","language":"ru"} стороны AD{"color":"#202335","fontFamily":"stix","language":"ru"} выпуклого четырёхугольника ABCD{"color":"#202335","fontFamily":"stix","language":"ru"} равноудалена от всех его вершин. Найдите AD{"color":"#202335","fontFamily":"stix","language":"ru"}, если BC=14{"color":"#202335","fontFamily":"stix","language":"ru"}, а углы B{"color":"#202335","fontFamily":"stix","language":"ru"} и C{"color":"#202335","fontFamily":"stix","language":"ru"} четырёхугольника равны соответственно 110°{"color":"#202335","fontFamily":"stix","language":"ru"} и 100°{"color":"#202335","fontFamily":"stix","language":"ru"}.
