如图,已知：AD=AE,

如图,已知：AD=AE, 如图,已知AD/DB=AE/EC,求证 :AD/AB=AE/AC. 已知:如图,AC/AD=AB/DE=BC/AE.求证AB=AE 已知,如图,AD/AC=DE/AB=AE/BC,求证AB=AE 已知,如图,AD:AC=DE:AB=AE:BC 求证：AB=AE 已知,如图,AD/DB=AE/EC,证明DE/BC=AE/AC 如图,已知AD‖BC,AD=CB,AE=CF.求证:DF=BE 如图,已知AD‖BC,AD=BC,AE=FC,求证:BE‖DF 已知:如图,AD/AB=AE/BC求证：AD/AE=DB/EC和AB/DB=AC/EC 已知:如图,AD/AB=AE/BC求证：AD/AE=DB/EC和AB/DB=AC/EC 如图,已知：AB=AE,AC=AD,AC⊥AD,AB⊥AE.求证：ED⊥BC. 已知:如图,AD平行于BC,AE评分角BAD,AE垂直BE;说明AD+BC=AB 已知:如图,AD平行BC,AE平分∠BAD,AE⊥BE；说明：AD+BC=AB 已知：如图,AD平行于BC,AE平分∠BAD,AE⊥BE；说明：AD+BC=AB 已知：如图,AD∥BC,AE平分∠BAD,AE⊥BE；说明：AD+BC=AB. 已知：如图,AD平行于BC,AE平分∠BAD,AE⊥BE；说明：AD+BC=AB 如图,已知AD//BC,AD=BC,AE⊥AD,AF⊥AB,AE=AD,AB=AF.求证：AC=EF. 如图,正方形ABCD,AE=AD,