A 10x10 square can obviously hold 100 unit circles (diameter=1) when arranged in rows and columns. What is the maximum number of non-overlapping unit circles a 10x10 square can hold if the circles are packed closer together?
(In reply to
re(2): hmmm... by ThoughtProvoker)
Well, it is that I could not see his how he got the right-angled triangle. And well, if I am not mistaken, I predictd my answer before looking at his?? No, it is not that I do not want to display a full solution, but it is that, it is very clumsy, inconvinient and well, it will absolutely help if I can display a diagram. But I cannot! Or, actually, I do not know how. I am new here by the way...
Sorry.