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生活中的最短路线问题是中考热点之一,我们常用的方法是借助轴对称知识将折线转化为直线,再利用公理“两点之间,线段最短”来求线段和的最小值,从而解决最短路径问题.鲁教版七年级上册相关内容有:三角形、轴对称、实数、勾股定理、位置与坐标、一次函数,本文将列举与这些知识内容相关的线段之和最短问题,让学生能够看清与轴对称相关的线段之和
The shortest route in life is one of the hottest entrance exams. Our common method is to convert the broken line into a straight line by using axisymmetric knowledge, and then use the axiom “between two points and the shortest line segment” to find the minimum value of the line segment sum Solve the shortest path problem.Lujiao edition of the seventh grade on the relevant content: triangle, axisymmetric, real number, Pythagorean theorem, location and coordinates, a function, this article will list the contents of these knowledge-related line segments and the shortest problem for students It is possible to see the sum of the line segments related to axisymmetry