Question

In the figure point G is a centroid of $\Delta$ABC. If AG$=4$, then find AD.

Answer 1

Since $G$ is the centroid $AG:GD=2:1$

$\frac{AG}{GD}=\frac{2}{1}$

$GD=\frac{AG}{2}=\frac{4}{2}=2$

$AD=AG+GD=4+2=6cm$