近年来 ,各地中考试题中经常出现一类矩形折叠问题 .由于折叠后重合的两部分关于折痕对称 ,因此 ,对于此类问题 ,需注意轴对称的性质的应用 ,同时结合勾股定理、相似三角形的性质及方程思想来求解 .一、折叠后求线段的长例 1　如图 1 ,在矩形ＡＢＣＤ中 ,ＡＢ =8,ＢＣ =6,将矩 In recent years, there has been a problem of rectangular folding in various examination questions. Since the folded two parts overlap about the crease symmetry, therefore, for this kind of problem, attention should be paid to the application of the property of axisymmetric, combined with the Pythagorean theorem, similarity. The nature of the triangle and the equations to solve the problem. First, the length of the line segment after folding Example 1 In Figure 1, in the rectangular ABCD, AB = 8, BC = 6, the moment