题目内容
已知:如图,△ABC中,AB="AC," D、E在BC边上,且AD=AE,求证:BD=CE
证明:作AF⊥BC于F,
∵ AB="AC," AF⊥BC于F,
∴ BF=CF
∵ AD="AE," AF⊥BC于F,
∴ DF=EF,
∴ BF-DF=CF-EF即 BD=CE
解析
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题目内容
已知:如图,△ABC中,AB="AC," D、E在BC边上,且AD=AE,求证:BD=CE
证明:作AF⊥BC于F,
∵ AB="AC," AF⊥BC于F,
∴ BF=CF
∵ AD="AE," AF⊥BC于F,
∴ DF=EF,
∴ BF-DF=CF-EF即 BD=CE
解析