The Original Half Granny Square/Shawl
From the designer: This is the Original Pattern, copyrighted 2002, with MY instructions, that I wrote out myself. Please do not post to any other web page nor do a copy/paste (yeah, you guessed it). This is great for a shawl, for completing a square, as a filler in a diamond granny afghan, and for covering up your hair. :)
For a shawl, I finished the top (where you start) with a row of single crochets, to give firmness and help you grab it should it slip.
Continue working in established pattern until you finish the triangle you want. You can make a shawl if you use about 14 ounces of worsted weight yarn, including fringe. Or make a pretty edge to it. Anyway, you now know how to make a granny triangle! :o)
Yardage above is estimated.