Originally Posted by cutebuns
I would just cut a rectangle that is 2"x3 1/2" and cut it on the diagonal, if your layers are facing opposite then you will get opposite facing triangles.
Great idea, but the rectangle is to be cut from a two-color strip with the (angle ) running straight up/down the strip seam. Then you trim, turn and trim the other side to form the correct Bi-rectangle.... sorry, I can't say it any better.