NONAGON
, a figure having nine sides and angles. —In a regular Nonagon, or that whose angles, and sides, are all equal, if each side be 1, its area will be 6.1818242 = 9/4 of the tangent of 70°, to the radius 1. See my Mensuration, p. 114, 2d edit.
· 
· 
ABCDEFGHKLMNOPQRSTWXYZABCEGLMN
Entry taken from A Mathematical and Philosophical Dictionary, by Charles Hutton, 1796.
This text has been generated using commercial OCR software, and there are still many problems; it is slowly getting better over time. Please don't reuse the content (e.g. do not post to wikipedia) without asking liam at holoweb dot net first (mention the colour of your socks in the mail), because I am still working on fixing errors. Thanks!