La catedral de Ulm (Alemania) es la más alta del mundo y mide 161 metros. La
razón de las alturas de la catedral de Ulm y la de Sevilla es de 1,713. ¿Qué altura tiene
la catedral de Sevilla?

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)