几何是研究图形的形状、大小和位置关系的一门学科,其中探究图形的变化规律,是近年来各地竞赛中的常见题型,几何中的最值问题广泛存在于初中数学竞赛,这类问题具有很强的探索性在初中平面几何中的最值与定值问题综合性比较强,涉及的知识面也比较广,能力要求上也很高。本文将结合竞赛实例来介绍几种常见的方法来解答相应类型的题目。 Geometry is a discipline that studies the shape, size and position of graphics. The study of the variation of graphics is a common type of competition in various places in recent years. The most value problems in geometry are found in junior math competitions. Such problems Has a strong exploratory In the plane geometry of junior high school the most comprehensive and fixed value problem is relatively comprehensive, involving a wide range of knowledge, ability requirements are also high. This article will combine the race examples to introduce several common methods to answer the corresponding type of topic.