A half-square triangle is a quilt block made of two right-angled triangles joined along their long diagonal edges to form a two-color square. Quilters usually mass-produce them by placing two fabric squares right sides together, sewing two parallel lines down the center diagonal, and cutting between the stitches. They form the basis of thousands of traditional quilt patterns.
Heard on the job
We're making sixty HST units for the border of the star quilt.
Also heard as
- half-square triangle