L-9

Print or trace the block diagram onto foundation paper, number, and cut out as below.
(Ignore the little unpieced triangles. We'll rotary cut them.)

Following the numbers, foundation piece each numbered section and trim the seam allowances to 1/4".
Out of background fabric, cut 2 squares 2 3/8" x 2 3/8" and cut each in half on the diagonal.

Sew together the three center sections.

Attach the four side sections.

Finally sew on the four background fabric triangles.