Sand is poured onto a surface at 20 cm³/s, forming a conical

Last updated: 7/19/2022

Sand is poured onto a surface at 20 cm³/s, forming a conical pile whose base diameter is always equal to its altitude. How fast (in cm/s) is the altitude of the pile increasing when the pile is 3 cm high? Remember, the volume of a cone is V =πr ². Note: Round to the nearest hundredth.