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
B Sides and C Sides B Sides and C Sides B Sides and C Sides is a compilation album by the American punk rock band Rancid. It was first released online on December 11, 2007, followed by a standard release on January 15, 2008. It contains a number of B-sides and rare songs as well as compilation or soundtrack appearances plus 4 previously unreleased songs. The set spans from 1992 to 2004, therefore it doesn't include any songs recorded with current drummer Branden Steineckert. "B Sides and C Sides" is also notable as being the band's first release since their hiatus in 2004, along with