轴对称是初中数学中的一种重要变换,也是中考的重要考点之一.一些同学在学习轴对称时,由于概念不清、理解不准,常会出现这样或那样的错误.一概念模糊例1有下列说法:①两个全等三角形合在一起是一个轴对称图形;②等腰三角形的对称轴是底边上的中线;③等边三角形一边上的高就是这条边的垂直平分线;④一条线段可以看作是以它的垂直平分线为对称 Axisymmetric is an important transformation of mathematics in junior high school, but also one of the important test centers in the test. Some students in studying axisymmetric, due to unclear concepts, understanding is not allowed, often there will be one way or another. The following statement: ① two congruent triangles together is an axisymmetric graphics; ② isosceles triangle symmetry axis is the center line on the bottom; ③ side of the equilateral triangle is the vertical bisector of this side; ④ a line segment can be seen as its vertical bisector symmetry