如图,已知AC⊥AB,EF⊥BC,AD⊥BC,垂足分别为A,F,D,∠1=∠2,求证AC⊥DG

如图,已知AD//BC,AD=BC,AE⊥AD,AF⊥AB,AE=AD,AB=AF.求证：AC=EF. 如图,已知AE⊥AD,AF⊥AB,AF=AB,AE=AD=BC,AD‖BC,求证AC⊥EF 已知AE⊥AD,AF⊥AB,AE=AD=BC,AD‖BC,求证:⑴AC=EF⑵AC⊥EF如题 如图,已知AE⊥AD,AF⊥AB,AF=AB,AE=AD=BC,AD∥BC,求证：（1）AC=EF（2）AC⊥EF不用平行四边形 如图,已知AD⊥AB,AD⊥AC,AE⊥BC.D是FG的中点,AF=AG,EF=EG.求证：BC∥FG. 如图,已知AC⊥BC,AD⊥BD,AD=BC,CE⊥AB,垂足分别为、EF求证CE=DF 已知：如图（1）所示,AC⊥AB,EF⊥BC,AD⊥BC,∠1=∠2,求证AC⊥DG 如图,已知AC⊥AB,EF⊥BC,AD⊥BC,垂足分别为A,F,D,∠1=∠2,求证AC⊥DG 已知:如图（1）AC⊥AB,EF⊥BC,AD⊥BC,∠1=∠2,求证AC⊥DG 如图,AC⊥AB,EF⊥BC,AD⊥BC,∠1=∠2,求证:DG⊥AC 如图,AD∥BC,AD=BC,AE⊥AD,AF⊥AB,且AE=AD,AF=AB,求证：AC=EF. 如图,已知AD平分∠BAC,CE⊥AD,交AB于E,EF∥BC交AC于F,求证：EC平分∠DEF 如图,已知AD平分∠BAC,CE⊥AD,交AB于E,EF∥BC交AC于F,求证：EC平分∠DEF 已知,如图在△ABC中,AC=BC,AC⊥BC,直线EF交AC于F,交AB于E,交BC的延长线于D,且CF=CD,连接AD,BF,则AD与BF…已知,如图在△ABC中,AC=BC,AC⊥BC,直线EF交AC于F,交AB于E,交BC的延长线于D,且CF=CD,连接AD,BF,则AD与BF之 如图,已知,AE⊥EF,BF⊥EF,AC=BD,试说明AD=BC 如图,已知AE⊥AD,AF⊥AB,AF=AB,AE=AD=BC,AD∥BC,猜想线段AC,EF的关系,并证明你 已知,如图BF⊥AD,EC⊥AD,垂足分别是F,C,BC=EF,AB‖DE,求证BC‖EF,AB=DE 已知,如图BF⊥AD,EC⊥AD,垂足分别是F,C,BC=EF,AB‖DE,求证BC∥EF,AB=DE