重心的巧用浙江省绍兴市稽山中学高首慧说起重心，在一般的数学教学中，仅谈到二角形的重心是三条中线的交点，而本文要介绍的是另一类重心—一质点的重心所谓“他山之石可以攻玉”，物理学中的这一概念，在解决数学问题，特别是比值问题上，也人有“用武之地”．本文先给... The skillful use of the center of gravity in Shaoxing City, Zhejiang Province, Ji Shan Middle School Gao Huihui focused on the general mathematics teaching, only talking about the center of gravity is the intersection of the three middle lines, and this article will introduce another type of center of gravity - the center of gravity of a mass The so-called “stones from other hills can be used to attack jade”. This concept in physics is also used to solve mathematical problems, especially ratio issues. This article first gives...