В трапеции ABCD{"color":"#202335","fontFamily":"stix","language":"ru"} известно, что AB=CD,{"color":"#202335","fontFamily":"stix","language":"ru"} ∠BDA=30°{"color":"#202335","fontFamily":"stix","language":"ru"} и ∠BDC=110°.{"color":"#202335","fontFamily":"stix","language":"ru"} Найдите угол ABD.{"color":"#202335","fontFamily":"stix","language":"ru"} Ответ дайте в градусах.
