Question

In triangle ABC, AB = 3, AC = 5, and BC = 4. The medians AD, BE, and CF of triangle ABC intersect at the centroid G. Let the projections of G onto BC, AC, and AB be P, Q, and R, respectively. Find GP + GQ + GR.

Answer 1

As I said earlier,

http://www.jiskha.com/display.cgi?id=1479327393

Answer 2

the answer is 47/15