How can you solve for finding the side measurements of an octagonshaped deck that is 10 feet long and 10 feet wide. Thanks for your help. Linda Nettles, I'm not sure of the level of this question. I am an instructor at Florida Community College of Jacksonville in the Vocational Preparatory Instruction Lab. Hi, If you look at The sides of an octagon, a similar question that we received last year, you will see a construction that allows you to find the side length. In that case the octagon was 4.375 by 4.375. (I don't know the units.) The side of a regular octagon of diameter D feet is units. Cheers,Penny
