Octadecagon 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 as a quasiregular truncated enneagon, t{9}, which alternates two types of edges. As 18 = 2 × 3, a regular octadecagon cannot be constructed using a compass and straightedge. However, it is constructible using neusis, or an angle trisection with a tomahawk. The following approximate construction is very similar to that of the enneagon, as an octadecagon can be constructed as a truncated enneagon. It is also feasible with exclusive use of compass and straightedge. The "regular
Both Sides This completed track features an atmospheric drum machine, keyboard sounds (no piano) and vocals by Collins telling a story about a disaster at sea and families left behind. In November 2004, Collins himself commented on the song on the forum of his old official website: ""DEEP WATER TOWN...again I scratch my head and ask how did someone get it... I don't think it was ever released, or am I going slowly senile. It was a pretty song about a disaster at sea, and the families left behind. Obviously one of my more cheerful pre-divorce moments. Circa Both Sides..."" Although "Both