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确定几何元素间的函数关系，是近几年来全国各省市中考命题的热点之一．因此，在中考总复习中，一定要加强这方面的复习与训练．那么，怎样确定几何元素间的函数关系呢？基本方法是：根据几何图形有关的度全性质，确定函数与自变量之间的等量关系，然后再经过适当的恒等变形，?
Determining the functional relationship between geometric elements is one of the hot spots in the examination propositions in various provinces and cities in recent years. Therefore, we must strengthen the review and training in this area during the review. So how do you determine the functional relationships between geometric elements? The basic method is to determine the equal relationship between a function and an independent variable based on the full degree of the geometrical properties of the geometry, and then pass the appropriate constant deformation.