来自唐绿岸的问题
(1)如图1,在△ABC中,AB=AC,点D是BC的中点,点E在AD上.求证:①△ABD≌△ACD;②BE=CE.(2)已知,如图2,AB=AE,∠1=∠2,∠B=∠E.求证:BC=ED.
(1)如图1,在△ABC中,AB=AC,点D是BC的中点,点E在AD上.
求证:①△ABD≌△ACD;②BE=CE.
(2)已知,如图2,AB=AE,∠1=∠2,∠B=∠E.求证:BC=ED.
1回答
2020-03-20 13:19