Question 198438
10ft.wide octagon shape, need to know what lenght and the angle cut to make. thank you

10ft x 10ft square to start
Angle size is rather simple too.
{{{a=180(s-2)}}} where s=number of sides(10) and a=total angular measurement
{{{a=180(10-2)}}}
{{{a=180(8)}}}
{{{a=1440}}} divide by the number of angles
{{{1440/10=144}}} each angles measurement

Each side will be 
{{{l=h(sqrt(2)-1)}}} where h=hieght(10) and l=lengthof a side.
{{{l=4.142135623730950488016887242097}}}