14. In triangle $A B C, A B=32 \mathrm{~cm}, A C=36 \mathrm{~cm}$ and $B C=44 \mathrm{~cm}$. If $M$ is the midpoint of $B C$, find the length of $A M$ in $\mathrm{cm}$.
14. Ans: 26.
Using the Median Formula, $A M^{2}=\frac{2 A B^{2}+2 A C^{2}-B C^{2}}{4}$. Thus $A M=26 \mathrm{~cm}$.