Those look like side-setting triangles for an on-point quilt. Carol Thelen has a free on-point calculator that can help you determine the correct size for cutting those triangles. (You would cut 4 triangles from one larger square.) I suggest watching her video.
https://www.youtube.com/watch?v=umIEUEmNlAA
Last edited by sloscotty; 10-11-2024 at 02:03 AM.