Octadecagon and 2{9/4} or two enneagrams, {18/6} is reduced to 6{3} or 6 equilateral triangles, and finally {18/9} is reduced to 9{2} as nine digons. Deeper truncations of the regular enneagon and enneagrams can produce isogonal (vertex-transitive) intermediate octadecagram forms with equally spaced vertices and two edge lengths. Other truncations form double coverings: t{9/8}={18/8}=2{9/4}, t{9/4}={18/4}=2{9/2}, t{9/2}={18/2}=2{9}. The regular octadecagon is the Petrie polygon for a number of higher-dimensional polytopes, shown in these skew orthogonal projections from Coxeter planes: Octadecagon An octadecagon (or octakaidecagon) or 18-gon is an eighteen-sided polygon. A "regular octadecagon" has a Schläfli symbol {18} and can be constructed
Long Forgotten Songs: B-Sides & Covers 2000–2013 charted in several other countries. The album received generally favorable reviews; several critics said the covers were the best aspect of the album, and noted how many of the songs felt fully fleshed out despite being relegated to B-sides. While backstage at the 2013 Orion Music + More festival, the members of Rise Against attempted to catalog their lesser known B-sides and covers, but came to the conclusion that there were some songs that they did not own copies of. These songs were often included in Fat Music compilation albums or soundtrack albums. As lead singer Tim McIlrath put it: