Given:-
[tex] \bullet [/tex] Radius (r) of the cone is 3 ft.
[tex] \bullet [/tex] Height (h) of the cone is 9 ft.
To Find:-
The volume of the cone.
Solution:-
We know,
Formula of Volume of cone is [tex] \frac{1}{3} [/tex]πr²h
So, Volume of the cone = [tex] \frac{1}{3} [/tex] × [tex] \frac{22}{7} [/tex] × (3)² × 9
Volume of the cone = [tex] \frac{1}{3} [/tex] × [tex] \frac{22}{7} [/tex] × 3 × 3 × 9
Volume of the cone = [tex] \frac{22 \: × \: 3 \: × \: 3 \: × \: 9}{3 \: × \: 7} [/tex]
Volume of the cone = [tex] \frac{1782}{21} [/tex]
Volume of the cone = 84.86 cubic ft.
The volume of the cone is 84.86 cubic ft. [Answer]
