ab⊥ac.ad⊥ae .ab=ac .ad=ae .说明 be⊥cd

ab⊥ac.ad⊥ae .ab=ac .ad=ae .说明 be⊥cd 如图所示,AD⊥AB,AE⊥AC,且AD=AB,AE=AC.试说明:BE=CD,BE⊥CD 如图,AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证BE⊥CD 如图,AB‖CD,AD‖BC,AE⊥AB,AF⊥AD,AE=AB,AF=AD,试说明AC=EF 如图所示,已知AB⊥AC,AD⊥AE,AB=AC,AD=AE,求证：BE=DC 如图,已知AB⊥AC,AD⊥AE,且AB=AC,AD=AE,说明△ABE全等于△ACD BE和CD的位置关系如何 如图,已知AE⊥AD,AF⊥AB,AB//CD,AE=CD,AE=AD,AF=CD,求证AC=EF 已知AD⊥AB,AC⊥AE,且AD=AB,AC=AE,CD分别交AB,BE于点G,F 求证1）∠B=∠C 2）BE⊥CD 如图,AD⊥AE,AB垂直AC,AD=AE,AB=AC,AD⊥AE ,AB=AC,求证：三角形ABD≌三角形ACE 已知如图,AB=AC,∠1=∠2,AD⊥CD,AE⊥BE,求证:AD=AE 如图AB=AC AD=AE,BE与CD相交于点o,求证AO⊥BC 如图,已知AB=AD,AC=AE,AB⊥AD,AC⊥AE,说明⊿ABC与⊿ADE全等的理由?