论文部分内容阅读
全等三角形是初中几何的重要内容之一,学好这部分内容是几何入门的关键,也是将来继续学习几何的基础.为帮助同学们学好这部分内容,笔者谈以下三点: 一、正确理解全等三角形的有关知识1.全等三角形的定义:能够完全重合的两个三角形,叫做全等三角形. 2.全等三角形的性质:全等三角形的对应边相等、对应角相等.此性质是整个初中几何推理论证的基础之
Congruent triangle is one of the important contents of junior high school geometry. Learning this part is the key to getting started in geometry, and it is also the foundation for future study of geometry. To help students learn this part, the author talks about the following three points: 1. Correct understanding of the whole The knowledge of equal triangles 1. The definition of congruent triangles: Two triangles that can be completely coincident, called congruent triangles. 2. The properties of congruent triangles: The equal sides of congruent triangles are equal and the corresponding angles are equal. This property is the entire The basis of the theoretical evidence of junior high school geometry