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2019年春八年级数学下册第18章勾股定理18.1勾股定理第1课时勾股定理课件（新版）沪科版.pptx

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第18章 勾股定理,18.1 勾股定理,16.某校为了美化校园,对校内一块直角三角形的花圃进行改造.测得两直角边长为5 m,12 m.现要将其扩建成等腰三角形,且扩建部分是以12 m为直角边的直角三角形.求扩建后的等腰三角形花圃的周长.,

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