Originally Posted by
Jan in VA
Here is my tutorial on many different triangles, including the Half Square Triangles you need. It's in pdf. format so you will need adobe reader to open it. That is available free on the internet for download.
As a quick reference, make your base squares ONE INCH larger than the desired half square triangles, then trim them down for better accuracy after sewing them.
Jan in VA
Wow, that was wonderful. I printed it out for future reference. (The first row of your "mountains" has also been labeled as "pyramids".) This will be so helpful to keep in my records. PS. It took me a while to understand the 4-patch on point on page 5, but I finally got it.