Question

A drinking glass, in the shape of a cylinder, must hold 200 m of liquid when full. 10.1 10.2 10.3 h 200 Show that the height of the glass, h, can be expressed as h= 400 Show that the total surface area of the glass can be expressed as S(r)=r + Hence determine the value of r for which the total surface area of the glass is a minimum.