My program says 6 7/8" as well. Good luck!!
In my mind Denis's math is correct but as he says I would do a test run first.
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Thank you all, I couldn't do fractions as a kid, I couldn't do fractions as a mother and now as you can see I can't do fractions as a quilter LOL. Since this quilt is for a baby shower gift I may stick to the four patch which I do well but I will be making quilts for my four grandchildren so I will do a couple of test runs and use the pinwheels for some of those.
Happy Quilting
Evelyn