A cylindrical-shaped tin can is to have a capacity of 1000 cm^3.
a) find the dimensions of the can that require the minimum amount of tin and assume that no waste material is allowed. The marketing department has specified that the smallest can the market will accept has a diameter of 6 cm and a height of 4 cm.
b) express the answer for part a as a ratio of height to diameter
so far.... I have
(not sure if it is correct)