Question

Find centre of mass of solid tetrahedral ​

Answer 1

Answer:

A median of a tetrahedron is a line from a vertex to the centroid of the opposite face. Theorem I. The four medians of a tetrahedron are concurrent at a point 3/4 of the way from a vertex to the centroid of the opposite face. The centre of mass of a uniform solid tetrahedron is at the meet of the medians.