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
Rarities/B-Sides Rarities/B-Sides Rarities/B-Sides is the first compilation album by The Raveonettes, and it was released December 15, 2011 on 500 CD and 500 double 180 gram LP. This limited edition collection compiles b-side and rare material spanning "Whip It On", "Chain Gang of Love", "Pretty in Black" and "Lust Lust Lust". Covers released as b-sides or bonus tracks are not included; specifically Eddie Cochran's "C'mon Everybody", Hank Williams' "I'm So Lonesome I Could Cry", and Buddy Holly's "Everyday". "Rarities/B-Sides" marks the first time the 2003 single "The Christmas Song" has been available on an album, as the song was absent from