如图,AB=DE,AC=DF,BF=EC.求证:△ABC≌△DEF.

如图,AB=DE,AC=DF,BF=EC.求证:△ABC≌△DEF. 如图,AB=DE,AC=DF,BF=EC,△ABC和△DEF全等吗? 如图,已知AB=DE,AC=DF,CE=BF,求证△ABC全等于△DEF 如图,AB=DE,AC//DF,BC//EF,求证:△ABC≌△DEF 1.如图,AB=DE,AC//DF,BC//EF,求证：△ABC≌△DEF. 如图，已知∠B=∠E=90°，AC=DF，BF=EC．求证：△ABC≌△DEF． 已知,如图BE=CF,AB=DE,AC=DF,求证△ABC≌△DEF 如图，AB∥DE，AC∥DF，BE=CF．求证：△ABC≌△DEF． 如图△ABC≌△DEF式说明(1)BF=EC(2)AC∥DF 如图,AB=DE,AC∥DF,BC∥EF,求证△ABC全等于△DEF 如图,已知∠1=∠2,BF=EC,AB‖ED,求证:△ABC≌△DEF 如图4,已知AB//DE,AC//DF,BD=CE.(1)求证△ABC≌△DEF(2)若BF=5,CF=3,求BE长.