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线段、射线和直线是最基本的几何概念,也是今后学习几何的基础.学习时,可以从以下几方面入手.一、理解三个概念1.线段:线段是一个基本的几何概念,直观地看,一根笔直的竹竿可以近似地看做线段,线段是两个端点,可以比较其长短.2.射线:将线段向一个方向无限延长就形成了射线,射线?
Line segments, rays, and lines are the most basic geometric concepts and the basis for learning geometry in the future. When learning, you can start with the following aspects. First, understand the three concepts 1. Segments: Segments are a basic geometric concept, and they are intuitively viewed. A straight bamboo raft can be viewed approximately as a line segment. The line segment is the two end points that can be compared to each other. 2. Rays: Infinitely extend the line segment in one direction to form a ray, ray?