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构造法,是几何解题中常用的技巧,它就是根据题设条件或结论,将原图形构造为特殊的几何图形,以沟通题设条件与结论之间的联系,从而达到快速解题的目的.下面分别举例说明。
The construction method is a commonly used technique in geometric problem solving. It is based on the conditions or conclusions of the questions, and constructs the original figure as a special geometric figure, so as to communicate the connection between the conditions and the conclusions of the questions so as to achieve the purpose of solving problems quickly. Below are examples.