求证AE.AB=AF.AC.图我用文字表达下.
如图,已知AE⊥AD,AF⊥AB,AB//CD,AE=CD,AE=AD,AF=CD,求证AC=EF
如图,AD是三角形ABC的中线,AE垂直AC,AF垂直AB,且AE=AC,AF=AB,求证:AD=1/2EF
如图,已知AD//BC,AD=BC,AE⊥AD,AF⊥AB,AE=AD,AB=AF.求证:AC=EF.
如图,AD∥BC,AD=BC,AE⊥AD,AF⊥AB,且AE=AD,AF=AB,求证:AC=EF.
如图,已知AE⊥AD,AF⊥AB,AF=AB,AE=AD=BC,AD‖BC,求证AC⊥EF
如图,AE垂直于AD,AF垂直于AB,AB平行于CD,AE=AD,AF=CD,求证:AC=EF
如图,已知AE⊥AD,AF⊥AB,AB∥CD,AF=CD,AE=AD,求证:AC垂直EF.
如图,已知AB=AD,AC=AE,∠BAE=∠DAC,求证,AH=AF
如图AB是⊙O的直径弦CD⊥AB于P 如果弦AE交CD于F,求证AC²=AF×AE
AD是三角形ABC是的中线,AE垂直AB,AF垂直AC,且AE=AB,AF=AC,连接EF,求证:AD=2/1EF
AB=AC CF垂直BC BE垂直BC 求证 AE=AF
已知如图 △ABC中,AD⊥BC于D DE⊥AB于E DF⊥AC于F 求证 AE:AF=AC:AB