The equation used to find the equation of a cone is [tex] \pi [/tex]×radius²×height/3
Find your dimensions so it is easy to plug them into the equation:
radius: 4in
height: 9in
Plug these values into your equation: [tex] \pi [/tex]×(4)²×9/3
The volume of the cone is 150.8in³
-E :)