So What Are HSTs?
Half Square Triangles are a fun patchwork shape in quilting that, in spite of their name, is pieced using squares. A triangle shape you can create without having to actually cut a triangle shape? Sold!
The first step to making your half square triangles is to cut two squares. The size of the squares can be calculated using a simple formula.
Finished Unit Size + 1 inch = Cut Size of HST Squares
The method we're discussing in this post is for 2 at a time half square triangles. There are other methods for
making 4, 8, or even 16 half square triangles at a time, but they will need a different formula.
If the math is making your head spin, here's a very simple Half Square Triangle Chart: