NEW STRIP Half Square Foundations in sizes .5" to 4" in .25" increments! Triangulations 4.0 contains all of the great foundations found in the earlier version PLUS Strip Triangulations. Strip Triangulations has been developed to address the needs unique to piecing with pre-cut strips. When drafting the units, one of the angled points - a dog ear - has been eliminated, allowing the printed foundation units to properly fit the cut strips.