[b]In the applet below, you can enter the following values using the sliders or input boxes: [/b][br][br]The height of a right circular cone. Applet accepts values ranging from 0 - 50 cm. [br]The ratio of the height to the radius. In this applet, you can enter any [math]\frac{h}{r}[/math] value from 0 to 5. [br]The value of [math]\frac{dh}{dt}[/math] (which remains constant). You can choose any value from [math]-\frac{5cm}{sec}[/math] to [math]\frac{5cm}{sec}[/math]. [br][br]The applet will display, if you choose, corresponding values of [math]\frac{dr}{dt}[/math] and [math]\frac{dV}{dt}[/math]. [br]You can use this applet to check your solutions to related-rates problems involving matter filling up or draining from a right circular cone where [math]\frac{dh}{dt}[/math] is constant. [br][br][br][br]