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Discuz Math Forum»Forum › Mathematics › High School › 外类似中线&重心
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[几何] 外类似中线&重心

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hbghlyj

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hbghlyj posted 2019-8-6 00:35 |Read mode
Last edited by hbghlyj 2019-8-7 07:56 QQ图片20190806003151.png
设G为ABC重心.BG,CG交⊙(ABC)于I,H两点.过点A作⊙(ABC)切线交BC于点P.设PI交⊙(ABC)于点M.求证:$\triangle AMH \sim \triangle PAH$
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