美国哈佛大学在一次数学考试中,有这样一道填空题:题目要求在横线上填上适当的图形.这道题中图形设计奇妙,对考察学生的创新意识和数学建模思想都提出了一定的要求.初看叫人有点摸不着头脑.但仔细观察、分析该题,不难发现,已知6个图形都是轴对称图形,画出对称轴后,图形变得更加 Harvard University in the United States in a math test, there is such a fill in the blanks: the title requires the horizontal line to fill in the appropriate graphics. This question in the graphic design is wonderful, to study the students’ sense of innovation and mathematical modeling ideas are proposed Requirement. At first glance, it is a bit puzzled. But when you look closely at and analyze the problem, it is not difficult to find that the six known graphics are all axisymmetric. After the axis of symmetry is drawn, the graphics become more accurate.