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4课时)课件(新版)青岛版.pptx

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3. 用解直角三角形的知识解决有关斜坡的问题.,1.,2.,温故知新,20.0海里,在两个或多个直角三角形中,根据它们之间的边角关系,利用解直角三角形的知识解决实际问题.,抽象出实际问题中的直角三角形,或通过作辅助线构造直 角三角形.,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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