在学习数学时,老师经常告诉我们,要学会把问题一般化,我也经常模仿着老师把一些小问题进行一般化.这不,在学习直线的垂直和平行时,老师曾给我们介绍了两个结论:如果一个角的两条边与另一个角的两条边分别垂直,那么这两个角相等或互补;如果一个角的两条边与另一个角的两条边分别平行,那么这两个角相等或互补. When learning mathematics, teachers often tell us that to learn to generalize the problem, I often imitate the teacher to generalize some minor problems.This is not, when learning the vertical and horizontal lines, the teacher gave us two Conclusion: If two edges of one corner are perpendicular to two edges of the other corner, respectively, the two corners are equal or complementary. If two edges of one corner and two edges of the other corner are respectively parallel, The two corners are equal or complementary.