Nanibi and GingerK- thank you! I do realize, now after some sleep,that I was quite vague. My apologies...
I am looking for diamonds to mimic the baseball diamond and duh, I was only calculating 1" on one side so I will add a 1.5" border. Voila! the calculation now seems easier for me...
amazing what sleep can do... thank you for clarifying points that my tired brain could not see!
Hope you will have a good day!
DEb