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第 23 课时 解直角三角形的应用 PowerPoint PPT Presentation


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回 归 教 材. 考 点 聚 焦. 考 点 聚 焦. 回 归 教 材. 归 类 探 究. 归 类 探 究. 第 23 课时 解直角三角形的应用. 第 23 课时 ┃ 解直角三角形的应用. 考 点 聚 焦. 考点 解直角三角形的应用常用知识. 1 .仰角:在视线与水平线所成的角中,视线在水平线上 方的叫仰角. 2 .俯角:视线在水平线下方的叫俯角. 3 .坡度:坡面的铅直高度 h 和水平宽度 l 的比叫做坡面的 坡度 ( 或坡比 ) ,记作 i = ________ . 4 .坡角:坡面与水平面的夹角叫做坡角,记作 α .

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第 23 课时 解直角三角形的应用

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