1-3M-3M-1 October 9, 2012Tessellation Nation3-shape tessellationRaymond K. Houston Tile 1-3M-3M-1 Starting from Home position, reflect the upper right and lower left cells horizontally, then rotate them 180 degrees. Below is the resulting pattern of repeated tiles. Pattern 1-3M-3M-1 Share this:EmailPrintFacebookMorePinterestTwitter Related posts: 1-3-3-1 1-2M-2M-1 1-2-2-1 1-4-4-1 1-1-4-4 1-1-3M-3M 1-1-4M-4M 1-2-1-2 1-3-1-3 1-4M-1-4M