“形状相同的两个图形称作相似:若两个 图形不仅形状相同,而且大小也相等,能够完 全重合,那么二者全等.全等是相似的特殊情 况,它可以看作是大小相等,相似比为1的特 殊的相似.”对这一关系的理解,多数学生仅 仅是停留在表面,没有深入思考、领会其实质 与含义.这一句话,它不仅提示了全等与相似 的关系,更告诉了我们判定、证明两个图形全 "Two shapes with the same shape are called similar: if two shapes are not only identical in shape but also equal in size and can be completely coincident, then both are equal. The equality is similar to the special case. It can be seen as equal in size. , a similar similarity ratio of 1 is similar to the understanding of this relationship, most students only stay on the surface, do not have in-depth thinking, understand its essence and meaning. This sentence, it not only prompts the equal and similar The relationship also tells us to judge and prove the two graphics