3、如图333,AB=AC,AE=AD,点D、E分别在AB,AC上,求证:∠B=∠C(用几何语言解此题,可简洁)
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如图,DE//BC,请问AD:AC=AE:AB?AD:AE=AB:AC?
如图,AB=AD,AC=AE,
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
如图,已知AD/DB=AE/EC,求证 :AD/AB=AE/AC.
如图,AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证BE⊥CD
如图,AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证BE⊥CD
如图AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证:△DAC≌三角形EAB
如图,已知:AB=AE,AC=AD,AC⊥AD,AB⊥AE.求证:ED⊥BC.
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
如图ab:bd=ae:ce,求证ab:ac=ad:ae
如图 已知AD/DB=AE/EC=3/2,求AB/DB,EC/AC,AB/AD
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,AD/DB=AE/EC=2/3,求AB/DB、AE/AC的值.
如图,已知AD/DB=AE/EC=2/3,求AD/AB和EC/AC对不起
已知如图AB=AC,求证AB²=AD×AE