I know there's probably a simple answer to this question but math is not my strong suit. I'm making a 9 patch set on the diagonal for my DD. I need to resize the pattern and all but the center square are 1/4 sq triangles. To get a 5" finished square what size do I need to cut the squares? I thought 5-1/2" but I'm just not sure. Thanks for your help.
Here's a link to the pattern. It's the one on the far left at the top by The Quilter Magazine. It was a free pattern in the Feb/March 2013 issue.
https://www.pinterest.com/pin/98164466850285120