与一元二次方程的根有关的几何图形线段的长的问题是近几年来中考的一个热点,由于这类问题综合性强,常被作为中考压轴题,因而许多考生也感到很困难,为了使同学们在复习时就能注意到这方面知识的重要性,掌握其一般解题方法,以便顺利地过好这一关,现归纳举例说明,供复习时参考。 The problem of the length of the geometric line segment related to the root of the one-dimensional quadratic equation is a hot spot in the mid-term exam in recent years. Because of the comprehensive nature of this type of problem, it is often used as the final exam question. Many candidates also find it difficult to make During the review, the students will be able to notice the importance of this knowledge and master their general problem-solving methods so that they can successfully do this. This is an example of how they can be used for review.