近几年的中考数学试题中,与相似三角形有关的探索性问题已成为热点之一.它旨在考查学生的创新思维能力.现以中考题为例,予以说明.一、探索条件此类型题的特征是给出了结论,要求探索使该结论成立所具备的条件.解题时,一般需要从结论出发,逆向思维(即执果索因),依据三角形相似的 In recent years, the exploratory problem relating to similar triangles has become one of the hot spots in the mathematics test of the senior high school entrance examination. It aims to examine students' innovative thinking skills. Now take the exam questions as an example to explain. First, the exploration conditions of this type The feature is to give conclusions and ask to explore the conditions for the conclusion to be established. When solving a problem, it is generally necessary to start from the conclusion and reverse thinking (that is, to enforce the factor), based on the triangle similarity.