Hello qznoThis is a very small poster - more like a postage stamp! Only 18 sq cm?

Suppose the width of the paper is cm. Then, using area = length x width, the height is cm.

The width of the printed area is 1.0 cm less than that of the paper, and its height is 1.5 cm less. So the width and height of the printed area are ...?... cm and ...?... (in terms of ).

Multiply these to get an expression for the printed area, sq cm, and then find the value of that makes a maximum.

(Answer: cm. So the dimensions are ...?)

If the radius of the cylinder is cm, and the height cm, then the volume2) A cylindrical container with circular base is to hold 64 cubic centimeters. Find the dimensions so that the surface area will be a minimum when the cylinder is closed at the top.

So ...?... (in terms of )

The total surface area of the cylinder, ...?... (in terms of only)

Now find the value of that makes a minimum.

(Answer: cm. So the dimensions are ...?)

Can you complete these now?

Grandad