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三角形的几何重心具有明显的物理意义,它是在三角形的三个顶点分别放置质量相同的质点的物理重心。如果这三个质点的质量不全相同,那么这三个质点的物理重心就不再是几何重心。我们给出这种意义下的三角形的重心的定义和性
The geometric center of gravity of the triangle has obvious physical meanings. It is the physical center of gravity where the particles of the same quality are placed at the three vertices of the triangle. If the quality of the three particles is not the same, then the physical center of gravity of these three particles is no longer a geometric center of gravity. We give the definition and the nature of the triangle’s center of gravity in this sense