Well if you are doing the poem on both the relationship of radius and diameter then you properly do it about the relationship. But what you asked for was a poem of diameter so then I just am doing something out of the top of my mind but it would be like something like this out of my circle what you do is you take he radius and add two and what you got is something cool what you did was just add and you got something totally rad now what you just is the diameter nothing more finer you just got diameter I am sorry if it corny OK I am just in 3rd grade sorry if you did not like it eheheheh peace I am listing to just dance lady gaga.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.