Question

Help, please?

Answer 1

Volume of cone = pi r^2 h/3
but you need to find r first. do you know how?

Answer 2

notice volume of the cone: \(\large V=\frac{\color {red}{\pi r^2 h}}{3}=\frac{\color{red}{VolumeOfCylinder}}{3} \)

so can you find the volume of the cylinder?