Math Help.
I am trying to make a border of half square triangles for a quilt. The size of the quilt is 86 1/2" long and
74 1/2" wide. I need the measurement to cut the squares so they end up evenly along the edges. I want finished squares no larger than 3 1/4". I hope I explained this right. I keep trying to figure different sizes and end up with an odd measurement. Thank you for your help.