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九年级数学上册第2章解直角三角形2.5解直角三角形的应用（第3课时）课件（新版）青岛版.pptx

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温故知新,29.4米,3. 用解直角三角形的知识解决有关斜坡的问题.,1.,2.,课堂小结,1.利用直角三角形的三角比解决实际问题 2.完成习题2.5的相关习题,

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