求两条译面直线间的距离,既是立几的一个难点,又是高考的一个热点。虽然高考对其难度要求不高,但全面了解它的各种求法,对开阔思路和综合复习线面关系都有好处。其实,只要掌握以下技巧,这些解法也能变难为易。题目:如图,在棱长为a的正方体ABCD—A_1B_1C_1D_1 Finding the distance between two translation planes is not only a difficult point for the establishment, but also a hot spot for the college entrance examination. Although the college entrance examination is not demanding for its difficulty, a thorough understanding of its various approaches will be beneficial to broadening ideas and comprehensively reviewing the relationship between the lines. In fact, as long as you master the following skills, these solutions can also become difficult. Topic: As shown in the figure, in the box cube with the length a is ABCD—A_1B_1C_1D_1