Copy of Cylinder container

A container in the shape of a right circular cylinder with no top has surface area [math]3\pi[/math] m[math]^2[/math]. [br]What height [math]h[/math] and base radius [math]r[/math] will maximise the volume of the cylinder?
Move the slider to change the radius of the cylinder or click on the button Animate.

Information: Copy of Cylinder container