许多立体几何问题都可以利用几何模型来求解,而“长方体”作为其中一种非常重要的几何模型是许多立几题的作图方向.合理运用这一几何模型往往会使问题变得非常明朗,以下总结了三类能够补成长方体的四面体 Many geometric problems can be solved by using geometric models, and one of the most important geometric models is the drawing direction of many problems. The rational use of this geometric model often makes the problem very serious Clearly, the following summarizes three types of tetrahedra that can be made up of cuboids