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
B-Sides and Rarities (Beach House album) B-Sides and Rarities (Beach House album) B-Sides and Rarities is a compilation album by American dream pop band Beach House, released on June 30, 2017 through Sub Pop, Bella Union and Mistletone. The compilation contains B-sides and rare, unreleased cuts along with two new songs, "Chariot" and "Baseball Diamond". It also includes the band's cover of Queen's "Play the Game". The idea for a B-sides record came when the band realized how many non-album songs had been made over the years, and how hard it was to find and hear many of them. This compilation contains every song the band