help me with yardage calculating
My quilt will be 80x80 and i said I would use 2 yds to get 86 inches which is good. Then I thought it would be 4 yds since it is sq. How ever then I caculate sq inches , 86x86 would be 7396 sq inches and divided that by 1296 which is 1 yd sq inches and got 5.70 yds. What am I doing wrong? It seems the older I get , I don'y know or doubt myself. By the way this is yardage for the back of the quilt.