Half-Square Triangle

A Half-Square Triangle (HST) is a common quilt block shape created by cutting a square diagonally from corner to corner, resulting in two right-angled triangles. These triangles are often used in quilting to add geometric variety and visual interest. They can be made from two different fabric squares sewn together along the diagonal, then cut apart, or cut from a larger square. HSTs are versatile building blocks in quilt design, allowing for complex patterns like diamonds, stars, and other intricate motifs, all while maintaining a straightforward construction process.