A building is to be constructed in the form of a triangular pyramid ABCD as shown in the figure…

A building is to be constructed in the form of a triangular pyramid ABCD as shown in the figure. Let the angular points be $A(0, 1, 2)$, $B(3, 0, 1)$, $C(4, 3, 6)$ and $D(2, 3, 2)$ and let G be the point of intersection of the medians of $\Delta BCD$. Using the above information, answer the following (Application)