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近年来,矩形的折叠问题频频见于中考试卷中,这类问题普遍有一定的难度,使很多考生无从下手.其实,矩形折叠问题的实质就是轴对称图形的性质的应用.解矩形的折叠问题关键要把握住以下两点:1.翻折过去的图形与原图形全等,因此对应边、对应角相等,2.折叠前后对应点的连线被折痕垂直
In recent years, the problem of rectangular folding has been seen frequently in the Chinese exam paper. This type of problem is generally difficult, making many candidates unable to start. In fact, the essence of the rectangular folding problem is the application of the nature of axisymmetric graphics. Solution to the problem of rectangular folding To grasp the following two points: 1. Fold the past graphics and the original graphics congruent, so the corresponding edge, the corresponding angle is equal, 2. The corresponding point before and after folding the line is creased vertical