Or, you can cut your regular block (square) on the bias then cut that in half diagonally. That puts the bias on the sewn edges instead of the outside edges. Your original square block does have to be larger. I just measure one side of the triangle you need, plus 1/2 inch for seam alowances and make the bias square that size. Then cut that in half. you could try it first with scraps.
Last edited by mindless; 05-10-2017 at 11:34 AM.