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一、动态几何所涉及的综合性知识中考数学中屡次出现动态几何这个知识点,动态几何所涉及到的知识非常多,而且非常抽象、复杂。通过动态几何试题,可以考查学生应用数学解决问题的能力。根据图1可以看出,已知射线DE和x轴、y轴分别交于点E(0,4)以及点D(3,0),而点C根据点M(5,0)的位置,按照一个长度单位每秒的速度,朝着x轴进行匀速运动。这个时候,点P朝着点D的方向出发,同时也以一个单位长度每秒的速度朝
First, the dynamic geometry of the comprehensive knowledge involved Mathematical mathematics frequently appear dynamic geometry of this knowledge point, dynamic geometry involves a lot of knowledge, but also very abstract and complex. Through dynamic geometric test questions, students can test the ability to use mathematical solutions to the problem. It can be seen from Figure 1 that the ray DE and the x-axis and the y-axis are respectively intersected by the point E (0,4) and the point D (3,0), and the point C is determined by the position of the point M (5,0) Follow a unit of length per second at constant speed toward the x-axis. At this point, point P is heading in the direction of point D, and at the same time at a unit of length per second