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, Now celebration for her at the Hammerstein Ballroom in New York City. The 2000 version is played during an emotional scene featuring Emma Thompson in the 2003 film "Love Actually". It was also played during the 2010 Winter Olympics opening ceremony. Mitchell's song has been recorded by many other artists over the decades. For his version, folk legend Pete Seeger added a custom fourth verse with her permission. Both Sides, Now "Both Sides, Now" is one of the best-known songs of Canadian singer-songwriter Joni Mitchell. First recorded by Judy Collins, it appeared on the U.S. singles chart during the fall of