Question

如图，已知点E，C在线段BF上，BE=CF，AB∥DE，∠ACB=∠F．求证：△ABC≌△DEF．

Answer

证明：∵AB∥DE，                  

∴∠B=∠DEF．                     

∵BE=CF，

∴BC=EF．                             

∵∠ACB=∠F，                               

∴△ABC≌△DEF．

【解析】略