点D.E在△ABC的边BC上,AD=AE,BD=EC,求证:AB=AC

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点D.E在△ABC的边BC上,AD=AE,BD=EC,求证:AB=AC

点D.E在△ABC的边BC上,AD=AE,BD=EC,求证:AB=AC
点D.E在△ABC的边BC上,AD=AE,BD=EC,求证:AB=AC

点D.E在△ABC的边BC上,AD=AE,BD=EC,求证:AB=AC
因为:D、E在BC上 AD=AE 所以:∠ADE=∠AED ∠ADB=∠AEC 又因:BD=CE AD=AE 所以:△ADB≌△AEC 所以:AB=AC