C-03-Q041mediumsingle_mcqIf the three medians of △ABC\triangle ABC△ABC meet at GGG, then AB2+BC2+AC2=AB^2 + BC^2 + AC^2 =AB2+BC2+AC2=a3(GA2+GB2+GC2)3(GA^2 + GB^2 + GC^2)3(GA2+GB2+GC