已知AD是△ABC的中线,E是AD的三等分点,连接BE并延长交AC于F.则AF : FC为_______________________ .
更新时间:2022-05-13 18:38:38
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【知识点】 相似三角形的判定与性质综合
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【推荐1】如图,在
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【推荐2】如图,若
内一点P满足
,则称点P为
的布罗卡尔点,三角形的布罗卡尔点是法国数学家和数学教育家克雷尔首次发现的,后来被数学爱好者、法国军官布罗卡尔重新发现,并用他的名字命名.布罗卡尔点的再次发现,引发了研究“三角形几何”的热潮.已知
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