Substitute the given values into the formula and solve for the unknown variable. If necessary, round to two decimal places.

$\displaystyle {V}=\frac{{1}}{{3}}\pi{r}^{{2}}{h}$. Given $\displaystyle {V}={83.78}{\quad\text{and}\quad}{r}={4}$

$\displaystyle {h}=$

Use $\displaystyle \pi$ = 3.14159265359