初中阶段,我们经常会遇到求“最短距离”的问题.但很多同学对此类问题的解决仍漫无头绪,或者随意过点作垂线,进而出现错误解答.其实,只要加深对“轴对称”的理解和运用,适当利用三角形三边关系的有关性质,问题就能迎刃而解.例1如图1,直线MN表示一条小河的河边.一牧民在点A处放马.现在他要到河边去饮马。然后回到帐篷点B处(A,B在小河同旁).问:在何处饮 In the junior high school stage, we often encounter the problem of asking for the “shortest distance.” But many students still have no idea about the solution of such problems, or they randomly go over the vertical line to make mistakes. In fact, as long as they deepen “Axis symmetry,” the understanding and use of appropriate use of the triangular nature of the relationship between the three sides of the relationship, the problem can be resolved. Example 1 In Figure 1, a straight line MN represents the riverside of a small river. A herdsman at point A put the horse. Now he is going to the river to drink horses. Then return to the tent point B (A, B is next to the river). Q: Where to drink