解答立体几何问题时,要善于将复杂的、陌生的问题转化为简单的、熟悉的问题来解决,尤其在有关计算问题中,就常见的几种转化方法归纳如下. 一、空间、平面图形的转化策略在有些立体几何计算问题中,只有将其立体图形与平面图形分别转化来分析求解,才可以化难为易.其具体表现在: To solve the problem of three-dimensional geometry, we should be good at the complex, strange problems into simple, familiar problems to solve, especially in the calculation of the problem, the common transformation methods are summarized as follows. Transformation Strategy In some problems of solid geometry calculation, it can be difficult to make the difficult problem easily by transforming and analyzing the three-dimensional and the three-dimensional figures respectively,