如图,从电线杆上离地面h=8m的点A处,向地面拉一条长为l=12m的缆绳,这条缆绳拉直后在地面上点B处固定,点B离电线杆底部点C的距离是多少米?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/30 12:21:44
![如图,从电线杆上离地面h=8m的点A处,向地面拉一条长为l=12m的缆绳,这条缆绳拉直后在地面上点B处固定,点B离电线杆底部点C的距离是多少米?](/uploads/image/z/12993132-12-2.jpg?t=%E5%A6%82%E5%9B%BE%2C%E4%BB%8E%E7%94%B5%E7%BA%BF%E6%9D%86%E4%B8%8A%E7%A6%BB%E5%9C%B0%E9%9D%A2h%3D8m%E7%9A%84%E7%82%B9A%E5%A4%84%2C%E5%90%91%E5%9C%B0%E9%9D%A2%E6%8B%89%E4%B8%80%E6%9D%A1%E9%95%BF%E4%B8%BAl%3D12m%E7%9A%84%E7%BC%86%E7%BB%B3%2C%E8%BF%99%E6%9D%A1%E7%BC%86%E7%BB%B3%E6%8B%89%E7%9B%B4%E5%90%8E%E5%9C%A8%E5%9C%B0%E9%9D%A2%E4%B8%8A%E7%82%B9B%E5%A4%84%E5%9B%BA%E5%AE%9A%2C%E7%82%B9B%E7%A6%BB%E7%94%B5%E7%BA%BF%E6%9D%86%E5%BA%95%E9%83%A8%E7%82%B9C%E7%9A%84%E8%B7%9D%E7%A6%BB%E6%98%AF%E5%A4%9A%E5%B0%91%E7%B1%B3%3F)
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