I am going to feel silly when you guys give me the answer in 2 seconds but here we go. Imagine there are 16 rectangular pieces of paper with length 2 and width 1. You want to organise them in a big square or make them fit the smallest area possible. How many columns do you have and how many rows? If you need a pitiful attempt then i would say.... Let x be the total length and y be the total width then x=2y and r*c = 16 where r = rows and c = columns and we want to find min xy = min 3y2 given x = 2r and y = c then 3y2 = 32 yet this minima gives y = 0 obviously, so i am stuck. Yes i know this is year 8 maths, yes i am in University, any help much appreciative.