Найдите боковую сторону АВ{"color":"#202335","fontFamily":"stix","language":"ru"} трапеции ABCD{"color":"#202335","fontFamily":"stix","language":"ru"}, если углы АВС{"color":"#202335","fontFamily":"stix","language":"ru"} и BCD{"color":"#202335","fontFamily":"stix","language":"ru"} равны соответственно 30°{"color":"#202335","fontFamily":"stix","language":"ru"} и 135°{"color":"#202335","fontFamily":"stix","language":"ru"}, а CD=17{"color":"#202335","fontFamily":"stix","language":"ru"}.
