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
How to Keep an Alien in 2017. How to Keep an Alien How to Keep an Alien is a one-person show written and performed by Irish playwright Sonya Kelly, supported in the original run by stage manager Justin Murphy, and directed by Gina Moxley. The show chronicles Kelly's attraction to and then relationship with her stage manager at the time, the Australian national Kate Ferris, and fight to keep her in the country. It premiered in Dublin in 2013, and since has been on several national and international tours, including the Edinburgh Fringe, New York, and Finland, and is being performed in several festivals in