在初中阶段 ,我们学习了许多关于三角形的性质 ,其中三角形中线性质 :在三角形中 ,三条中线交于一点(这一点通常被称为三角形的重心 ) ,且重心把每一条中线分为从顶点到重心与从重心到中线所在边中点距离之比为 2∶1的两条线段 ,这是人所共知的 .然而 ,三角形中线的另一个性质 In junior high school, we learned a lot about the nature of triangles, in which the nature of the triangle’s midline: in the triangle, the three midlines intersect at one point (this is often called the center of gravity of the triangle), and the center of gravity divides each midline from the vertex to It is well known that the center of gravity is two lines with a ratio of 2:1 from the center of gravity to the midpoint of the midline. However, another property of the triangle’s centerline is