论文部分内容阅读
两条异面直线间的距离是立体几何的重点内容.下面以人教大纲版高中数学第二册(下B)P51习题9.8中的第4题为例,通过多个角度分析,探讨两条异面直线间距离的一些求解策略.题目:已知正方体ABCD-A′B′C′D′的棱长为1,求直线DA′与AC的距离.
The distance between two lines of different sides is the key content of the three-dimensional geometry. The following is an example of the fourth problem in the ninth volume of the high school mathematics book (bottom B) P51 problem 9.8. Some solving strategies for the distance between different straight lines. Title: Known cubes ABCD-A’B’C’D’ have an edge length of 1, and the distance between the line DA’ and AC is known.