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Folding Octagonal Poker Table How to build your very own folding, octagonal poker table! Calculating the Octagon Shape I'll be honest and say that maths is not my strong point and when it came to calculating the octagon shape, thank the lord for the Internet! I used http://buster2058.netfirms.com/octagon/octagon.htm for the calculation but just in case the site dies, here is the calculation: My table (before being cut) when joined together will be 1600mm by 1600mm square. The first thing that needs to be done is to calculate the C = �Hypotenuse� of the square. 
You need a scientific calculator for this but on a Windows PC, bring up the calculator, click on �View� and select Scientific. 1600   1600   2262.742 Now we need to divide the hypotenuse �C� in half giving us the radius. 2262.742  2 1131.371 1131.371  1600 -468.629  468.629 468.629 468.629 662.741 This means that the length of each side of the octagon will be 662.741mm.
It seems a scary calculation but check it with my numbers to make sure you've got it right! | 
