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“割与补”是立体几何解题的特有方法,而“延展平面”可视为“补”方法的延伸.下面请看“延展平面”是如何揭示隐含条件的.
“Cutting and Filling” is a unique method for solving solid geometry problems, and “extended flat” can be regarded as an extension of the “complement” method. See below to see how “extended flat” reveals implied conditions. of.