Increasing a HST/QST Block
I need some help and am hoping someone can be an angel and tell me what to do. I bought a pattern that needs a block, which is a hst and a qst. The pattern says to use an 8 1/2 square, and cut it diagonally for the hst side of background fabric. For the quarter sq. triangle side, you cut two blocks of different prints 9 inch square, diagonally both directions, making four triangles. You then sew two different triangles together and sew this piece to the background triangle (hst). This is too small for the 8 1/2 block that it is sown to, to finish the quilt. I emailed the lady who wrote the pattern, and she said to contact the quilt shop that I bought the pattern from. They told me to make my background block 9 3/8 inches and the print blocks 9 3/4 inches. This is too big. Please can someone help me!!