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
Both Sides of an Evening released on a Souvenir sampler, purchasable for a single dollar. Writing for Allmusic, music critic Bruce Eder wrote of the album "...the duo's most ambitious and mature record to date, but it just wasn't terribly exciting or of much interest (especially the second side) to the teenagers that made up the vast bulk of their audience." Production notes Both Sides of an Evening Both Sides Of An Evening was an album first released in 1961 by The Everly Brothers. Though it was released at the peak of their career, it failed to make any of the record charts. Fourteen songs