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垂线及其性质、画法

更新时间：2020-11-06 提供商：网龙网络公司 下载类型：免费下载

文件大小：0.13 MB 分辨率：794*1123 文件类型：DOCX

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---------垂线的画法与性质

合肥市行知学校 吴子赟

教学目标：

1.了解垂直的概念，能理解基本事实“过一点有且只有一条直线垂直于已知直线”，并且能用三角尺或量角器过一点画已知直线的垂线；

2.能运用基本事实“垂线段最短”解决一些相关的实际问题.

教学重难点：

重点：1.两条直线互相垂直的相关概念、性质和画法；

2.垂线段最短的性质及其简单应用.

难点：对点到直线距离的理解.

如认为平台内容涉嫌侵权，可通过邮件：101ppt@101.com 提出书面通知，我们将及时处理。

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