最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦～
A straight 15-foot-long ladder is leaning against a vertical wall with the base of the ladder on horizontal ground 9 feet from the wall. If the base of the ladder is pulled 2 feet further from the wall, then the top of the ladder will drop $$r$$ feet along the wall. Which of the following is closest to the value of $$x$$?
B显示答案
· 相关考点
4.3.7 勾股定理
4.3.7 勾股定理
以上解析由 考满分老师提供。
