In the figure below, given a regular octagon ABDEFGH, diagonals BF and DG intersect at M. If GH = a, Prove that . View or post a solution.See also: Artwork Problem 287.

Home | Sitemap | Geometry | Search | Problems | 281-290 | Email | View or post a solution. Last updated: Jan 3, 2015 by Antonio Gutierrez.