如图,等腰梯形ABCD中,AB = CD,AD∥BC.
(1)求证:△AOB≌△DOC;
(2)若AD = 4,BC = 8,,
①求梯形ABCD的面积;
②若E为AB中点,F为OC的中点,求EF的长.
相关知识点
推荐套卷
如图,等腰梯形ABCD中,AB = CD,AD∥BC.
(1)求证:△AOB≌△DOC;
(2)若AD = 4,BC = 8,,
①求梯形ABCD的面积;
②若E为AB中点,F为OC的中点,求EF的长.