No higher resolution available. 400px-Regular_octadecagon.svg.png (download) (400 × 400 pixels, file size: 8 KB, MIME type: image/png) About File History Metadata There is no description yet. Add a description. Appears on these pages of Octadecagon An Octadecagon is an 18-sided polygon with 18 angles. File history Click on a date/time to view the file as it appeared at that time. Date/TimeThumbnailDimensionsUserComment current11:34, July 7, 2014400 × 400 (8 KB)WaldenyanII (Talk | contribs) Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file. File change date and time 00:08, April 7, 2006 Read more In geometry, a hexagon is a polygon with six edges and six vertices. A regular hexagon has... Hexagon A right triangle is a triangle in which one angle is a right angle. The side opposite the right... Right triangle A Tridecagon is a 13-sided polygon with 13 angles. Tridecagon Retrieved from "http://math.wikia.com/wiki/File:400px-Regular_octadecagon.svg.png?oldid=12960" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.