Three point masses `m_(1), m_(2)` and `m_(3)` are located at the vertices of an equilateral triangle of side `alpha`. What is the moment of inertia of the system about an axis along the altitude of the triangle passing through `m_(1)?`

Three mass points m_(1)m_(2) amd m_(3) are located at the vertices of an equilateral triangle of length a. What is the moment of inertia of the system about an axis along the altitude of the triangle passing through m_(1) ?

Three mass points m_(1), m_(2), m_(3) are located at the vertices of an equilateral triangle of length a. What is the moment of 'inertia' of the system about an axis along an axis along the altitude of the triangle passing through m_(1) ?

Three masses 1 kg, 2 kg and 3 kg are located at the vertices of an equilateral triangle of length 1. Calculate the moment of inertia of the triangle about an axis along the altitude of triangle passing through the 1 kg mass.