1. The problem statement, all variables and given/known data Where exactly is the center of mass of a triangle ? the file attached shows a diagram of a triangle which is equilateral, and the blue spots are the mid-points of each side. 2. Relevant equations a distance = 2/3 from the vertex (along the median) 3. The attempt at a solution I think the Midpoint will be equal to (2h)/3 from the top vertex. But here is the real problem, is this Center of mass gonnah lie on the Yellow line passing through the mid points of two sides of the triangle ?