全等三角形是平面几何中最重要的基础知识,是证明线段相等或角相等的重要工具,只有掌握好全等三角形的有关知识,并能灵活应用才能学好四边形、圆等后续内容,所以考查全等三角形掌握的情况,也属于每年中考必考的内容.全等三角形的学习要注意不断结合生产、生活实例,从生活出发,多观察、多想像、多与同学交流;要将概念符号 Congruent triangles are the most important basic knowledge in plane geometry, and they are important tools to prove that the line segments are equal or equal in angle. Only by mastering the knowledge of congruent triangles, can we apply them flexibly to learn the following contents such as quadrilaterals, circles, etc. The situation such as trigonometry grasps also belongs to the content of the annual examination. The study of the equal triangle must be combined with the production and life examples continuously, starting from life, observing, imagining, and communicating with classmates more;