“运动型”几何题,通常是指由给定的点、线或面按某种方式运动变化,要求我们去探索某种结论的问题.求解这类试题时,首先必须弄清运动的对象(点、线、面)、运动方式、运动的范围以及运动时间和运动速度;其次要弄清在这个运动变化过程中哪些量是变化的,哪些量是不变的,以及图形的 “Sporty” geometry problems usually refer to a given point, line, or surface that changes in some way, requiring us to explore a certain conclusion. When solving such questions, we must first understand the object of movement ( Points, lines, and faces), the mode of movement, the range of motion, and the time and speed of movement; secondly, it is necessary to ascertain which quantities are changing, which quantities are constant, and which are