在近几年的各类考试中,探究几何图形面积的题目经常出现.这类题目需要同学们有较强的识别几何图形的能力、空间想象能力以及综合解决实际问题的能力.为此,本文特结合人教版九年级教材中《二次函数》这一章的一道习题进行探究、演变与应用,希望能给同 In recent years, various types of examinations, the area of ​​geometry to explore the topic often appear.This class of questions require students to have a strong ability to recognize geometry, spatial imagination and comprehensive ability to solve practical problems.To this end, this article Teach you with the ninth grade textbook “quadratic function” chapter of a problem exploration, evolution and application, hoping to give the same