Triangle quilt progress

There are 10 rows sewn and, depending on how many triangles I have, I'll be making this several triangles wider and a few rows longer.  this 2nd one is going faster than my first, since I know not to make all the mistakes I made the first time!

Well now I have to eat my words, I was supposed to make this 17 triangles across (I only did 12), so first thing I need to do is lengthen each row - at least I don't have to rip out anything !