Hi all, I am making the "diamonds at large" quilt from Layer Cake, Jellies and Charm Square. It says to cut the rectangles (7.5 x 10 inch rectangle) on the diagonal, then sew right sides together. (So you end up with a half square triangle that is rectangle/not square). Is it is as easy as lining up the cut edge with right sides together and piecing it? Things I read about rectangles make me think its more complicated than this...? Tell me if I'm not making sense :) Thanks!! Kim