В трапеции ABCD{"color":"#202335","fontFamily":"stix","language":"ru"} основание AD{"color":"#202335","fontFamily":"stix","language":"ru"} вдвое больше основания ВС{"color":"#202335","fontFamily":"stix","language":"ru"} и вдвое больше боковой стороны CD{"color":"#202335","fontFamily":"stix","language":"ru"}. Угол ADC{"color":"#202335","fontFamily":"stix","language":"ru"} равен 60°{"color":"#202335","fontFamily":"stix","language":"ru"}, сторона AB{"color":"#202335","fontFamily":"stix","language":"ru"} равна 6{"color":"#202335","fontFamily":"stix","language":"ru"}. Найдите площадь трапеции.
