如图,BC‖EF,AC‖DF,AE=DB,求证;BC=EF
如图,BC‖EF,AC‖DF,AE=DB,求证;BC=EF
已知:如图,AC=DF,∠A=∠D,AE=DB.求证:BC=EF.
如图,ac=df,角a=角d,ae=db求证bc=ef
如图,AC=DF,AC∥DF,AE=DB,求证:①△ABC≌△DEF.②BC=EF.
已知:如图,EF‖BC,AE²=AD·AB.求证:DF‖EC.
已知:如图,EF‖BC,AE²=AD·AB.求证:DF‖EC.
如图,已知AB⊥BC,AE⊥EF,AC=DF,BE=CF.求证AC平行于DF.
已知,如图,ad=df,角a=角d,ae=db,求证bc=ef
如图,已知点B、E在线段AD上,AE=DB,AC=DF,BC=EF.
如图AF=DB,BC=EF,AC=ED求证CB=EF
如图,ae=db,bc=ef,bc平行ef,求证 三角形abc全等三角形def
如图,AE=DB,BC=EF,BC平行于EF.求证:三角形ABC全等于三角形DEF.