Supplementary angles that aren't a linear pair

These geometric blocks (purple and yellow rhombuses) clearly show two angles that, when added, supplement each other. I found this picture on the internet.
I found this picture at:
http://www.google.com/imgres?q=rhombuses+in+real+life&start=22&num=10&um=1&hl=en&client=safari&rls=en&biw=1280&bih=738&tbm=isch&tbnid=U9omUgxSU_orIM:&imgrefurl=http://forquiltssake.blogspot.com/2011_07_01_archive.html&docid=NjNlpAujZI89uM&imgurl=https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFZJV4dKnV13gYJBJI0qVWq2KYDGRRi8g80PHbTUBwEccIsVVGCvDKhmH_-2h5fw_dBZ06kV95C61xA1Qr9oNNxRvK3u0OThiZ1le-Y1_VZ4naFQmdRu8OdbTEMsuVMAGnSQQJzG-PWLDE/s1600/BlocksInBox.jpg&w=998&h=550&ei=ZKKAUJe3PMWa0QH6noGwBA&zoom=1&iact=hc&vpx=431&vpy=288&dur=584&hovh=167&hovw=303&tx=142&ty=82&sig=109637316179286308971&page=2&tbnh=134&tbnw=270&ndsp=28&ved=1t:429,r:22,s:20,i:70