Hope this helps! Is from the app Photomath.
You don't use it usually because teachers usually say use 3.14 as an approximation
Step-by-step explanation:
Total volume is volume of cylinder+volume of cone
Volume of cylinder=pi*r^2*h
V=pi*6^2*14
V=1582.56
Volume of cone=pi*r^2*h/3
V=pi*6^2*6/3
V=226.08
1582.56+226.08=1808.64 or 1808.6 cubic inches