(1 point) Water is poured into a vessel in the form of a right circular cone with vertex down at a rate of 3 cm /min. The cone height and radius of the cone are 40 cm and 12 cm respectively. Find the rate at which the water level is rising when the water is 24 cm from the vertex. Answer: cm/min Find the rate of rise of the level when the vessel is quarterly filled. Answer: cm/min