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 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 were laid down for the album, in two halves (the first seven, for side A, were marked "For dancing", and the second seven, for side B, marked "For dreaming"). The completed album was recorded in only three days worth of sessions. It was produced by Bill Porter. Prior to the album's release, half-minute excerpts of the songs were